/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=NARROWEST --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/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:45:56,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:45:56,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:45:56,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:45:56,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:45:56,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:45:56,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:45:56,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:45:56,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:45:56,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:45:56,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:45:56,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:45:56,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:45:56,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:45:56,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:45:56,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:45:56,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:45:56,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:45:56,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:45:56,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:45:56,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:45:56,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:45:56,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:45:56,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:45:56,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:45:56,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:45:56,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:45:56,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:45:56,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:45:56,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:45:56,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:45:56,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:45:56,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:45:56,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:45:56,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:45:56,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:45:56,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:45:56,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:45:56,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:45:56,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:45:56,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:45:56,486 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 [2020-10-13 13:45:56,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:45:56,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:45:56,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:45:56,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:45:56,529 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:45:56,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:45:56,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:45:56,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:45:56,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:45:56,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:45:56,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:45:56,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:45:56,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:45:56,532 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:45:56,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:45:56,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:45:56,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:45:56,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:45:56,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:45:56,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:45:56,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:45:56,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:45:56,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:45:56,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:45:56,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:45:56,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:45:56,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:45:56,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:45:56,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:45:56,535 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:45:56,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:45:56,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:45:56,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:45:56,834 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:45:56,834 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:45:56,835 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2020-10-13 13:45:56,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae0771a7d/f8bd9f7f2d834419b57917aba6ce2fd2/FLAGc09b50779 [2020-10-13 13:45:57,410 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:45:57,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2020-10-13 13:45:57,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae0771a7d/f8bd9f7f2d834419b57917aba6ce2fd2/FLAGc09b50779 [2020-10-13 13:45:57,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae0771a7d/f8bd9f7f2d834419b57917aba6ce2fd2 [2020-10-13 13:45:57,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:45:57,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:45:57,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:45:57,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:45:57,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:45:57,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:45:57" (1/1) ... [2020-10-13 13:45:57,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:57, skipping insertion in model container [2020-10-13 13:45:57,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:45:57" (1/1) ... [2020-10-13 13:45:57,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:45:57,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:45:58,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:45:58,201 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:45:58,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:45:58,301 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:45:58,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58 WrapperNode [2020-10-13 13:45:58,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:45:58,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:45:58,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:45:58,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:45:58,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (1/1) ... [2020-10-13 13:45:58,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:45:58,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:45:58,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:45:58,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:45:58,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (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 [2020-10-13 13:45:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:45:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:45:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:45:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-13 13:45:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-13 13:45:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-13 13:45:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-13 13:45:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-13 13:45:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-13 13:45:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-13 13:45:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-13 13:45:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:45:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-13 13:45:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-13 13:45:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-13 13:45:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-13 13:45:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-13 13:45:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:45:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:45:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:45:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:45:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:45:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:45:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:45:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:45:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:45:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:45:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-13 13:45:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-13 13:45:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-13 13:45:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:45:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-13 13:45:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-13 13:45:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-13 13:45:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-13 13:45:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-13 13:45:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:45:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:45:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:45:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:45:59,230 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:45:59,230 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:45:59,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:45:59 BoogieIcfgContainer [2020-10-13 13:45:59,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:45:59,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:45:59,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:45:59,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:45:59,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:45:57" (1/3) ... [2020-10-13 13:45:59,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3298e791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:45:59, skipping insertion in model container [2020-10-13 13:45:59,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:45:58" (2/3) ... [2020-10-13 13:45:59,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3298e791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:45:59, skipping insertion in model container [2020-10-13 13:45:59,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:45:59" (3/3) ... [2020-10-13 13:45:59,246 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2020-10-13 13:45:59,258 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:45:59,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:45:59,278 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:45:59,304 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:45:59,305 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:45:59,305 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:45:59,305 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:45:59,305 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:45:59,306 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:45:59,306 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:45:59,306 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:45:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states. [2020-10-13 13:45:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 13:45:59,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:45:59,345 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] [2020-10-13 13:45:59,345 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:45:59,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:45:59,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1541207534, now seen corresponding path program 1 times [2020-10-13 13:45:59,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:45:59,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138889225] [2020-10-13 13:45:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:45:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:45:59,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:45:59,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:45:59,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:00,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:00,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:46:01,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:46:01,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1838 [2020-10-13 13:46:01,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 13:46:01,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:46:01,688 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:01,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:01,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:01,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:46:01,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:01,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:01,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:01,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:01,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:01,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:46:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:01,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:46:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:01,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 13:46:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:01,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:01,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:46:01,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:01,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:01,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:46:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:01,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:46:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 13:46:01,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 13:46:01,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:01,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:01,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:46:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:01,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:01,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:01,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:46:01,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:46:01,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 13:46:01,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:01,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:02,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:02,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:02,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:02,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:02,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:02,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:02,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:46:02,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138889225] [2020-10-13 13:46:02,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:02,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:46:02,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900593651] [2020-10-13 13:46:02,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:46:02,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:02,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:46:02,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:46:02,064 INFO L87 Difference]: Start difference. First operand 243 states. Second operand 9 states. [2020-10-13 13:46:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:03,645 INFO L93 Difference]: Finished difference Result 463 states and 711 transitions. [2020-10-13 13:46:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:46:03,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-13 13:46:03,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:03,662 INFO L225 Difference]: With dead ends: 463 [2020-10-13 13:46:03,662 INFO L226 Difference]: Without dead ends: 238 [2020-10-13 13:46:03,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:46:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-13 13:46:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-13 13:46:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-13 13:46:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 343 transitions. [2020-10-13 13:46:03,754 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 343 transitions. Word has length 71 [2020-10-13 13:46:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:03,754 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 343 transitions. [2020-10-13 13:46:03,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:46:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 343 transitions. [2020-10-13 13:46:03,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 13:46:03,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:03,759 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] [2020-10-13 13:46:03,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:46:03,760 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:03,760 INFO L82 PathProgramCache]: Analyzing trace with hash -508602450, now seen corresponding path program 1 times [2020-10-13 13:46:03,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:03,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274269720] [2020-10-13 13:46:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:03,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:46:07,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:46:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3802 [2020-10-13 13:46:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-13 13:46:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:46:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:07,811 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:07,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:07,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:46:07,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:07,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:07,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:07,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:07,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:46:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:07,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:07,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:07,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 13:46:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:07,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:07,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:07,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:07,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:07,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:07,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:07,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:07,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:46:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:07,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:07,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:07,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:07,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:07,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:07,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:07,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:07,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:07,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:07,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:07,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:08,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:46:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:08,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:46:08,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:08,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:08,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:08,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:08,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:08,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:08,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:08,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:46:08,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274269720] [2020-10-13 13:46:08,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:08,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:46:08,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362864099] [2020-10-13 13:46:08,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:46:08,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:08,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:46:08,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:46:08,098 INFO L87 Difference]: Start difference. First operand 238 states and 343 transitions. Second operand 11 states. [2020-10-13 13:46:09,152 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:09,340 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:46:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:10,544 INFO L93 Difference]: Finished difference Result 456 states and 659 transitions. [2020-10-13 13:46:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:46:10,544 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-13 13:46:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:10,553 INFO L225 Difference]: With dead ends: 456 [2020-10-13 13:46:10,553 INFO L226 Difference]: Without dead ends: 242 [2020-10-13 13:46:10,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:46:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-13 13:46:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-13 13:46:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-13 13:46:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 346 transitions. [2020-10-13 13:46:10,659 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 346 transitions. Word has length 71 [2020-10-13 13:46:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:10,660 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 346 transitions. [2020-10-13 13:46:10,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:46:10,660 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 346 transitions. [2020-10-13 13:46:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 13:46:10,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:10,664 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:10,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:46:10,664 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:10,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:10,665 INFO L82 PathProgramCache]: Analyzing trace with hash 317028165, now seen corresponding path program 1 times [2020-10-13 13:46:10,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:10,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741087757] [2020-10-13 13:46:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:10,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:10,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:11,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:15,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:15,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:46:15,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:46:15,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:46:15,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:46:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:46:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:46:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:15,959 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:15,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:15,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:15,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:15,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:46:15,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:15,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:15,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:15,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:16,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:46:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:46:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:16,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:16,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:46:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:46:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:46:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:46:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 13:46:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:16,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:46:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:46:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:16,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:16,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:46:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:16,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:46:16,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:46:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:16,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:16,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:46:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:16,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:46:16,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:46:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:16,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:16,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:46:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 13:46:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:16,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:16,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:46:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:16,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:16,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:16,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:16,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:16,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 13:46:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:16,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:16,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:16,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:16,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:16,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:46:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:16,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 13:46:16,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741087757] [2020-10-13 13:46:16,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:46:16,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:46:16,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267646892] [2020-10-13 13:46:16,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:46:16,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:16,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:46:16,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:46:16,407 INFO L87 Difference]: Start difference. First operand 242 states and 346 transitions. Second operand 16 states. [2020-10-13 13:46:16,575 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:16,797 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:46:16,943 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:46:19,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:19,557 INFO L93 Difference]: Finished difference Result 475 states and 677 transitions. [2020-10-13 13:46:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:46:19,561 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 93 [2020-10-13 13:46:19,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:19,564 INFO L225 Difference]: With dead ends: 475 [2020-10-13 13:46:19,564 INFO L226 Difference]: Without dead ends: 252 [2020-10-13 13:46:19,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:46:19,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-13 13:46:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 242. [2020-10-13 13:46:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-13 13:46:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 334 transitions. [2020-10-13 13:46:19,611 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 334 transitions. Word has length 93 [2020-10-13 13:46:19,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:19,614 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 334 transitions. [2020-10-13 13:46:19,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:46:19,614 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 334 transitions. [2020-10-13 13:46:19,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:46:19,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:19,623 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:19,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:46:19,624 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:19,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:19,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2124611218, now seen corresponding path program 1 times [2020-10-13 13:46:19,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:19,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991402437] [2020-10-13 13:46:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:19,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:21,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:24,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:24,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 13:46:24,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:46:24,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:46:24,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-13 13:46:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:46:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:24,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:24,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:24,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:24,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:24,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:24,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:24,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:24,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:24,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:24,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:24,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:46:24,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:24,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:24,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:24,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:46:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:24,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:24,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:24,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:24,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:24,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:24,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:24,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:46:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:24,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:24,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:24,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:24,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:24,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:46:24,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:24,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:24,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:24,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:24,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:24,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:24,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:24,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:24,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:24,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:46:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:24,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:25,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:25,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:25,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:25,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:46:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:25,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:25,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:25,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:25,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:46:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:25,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:25,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:25,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:25,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:25,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:46:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:25,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:25,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:25,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:25,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:46:25,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991402437] [2020-10-13 13:46:25,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:25,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:46:25,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005568207] [2020-10-13 13:46:25,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:46:25,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:25,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:46:25,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:46:25,191 INFO L87 Difference]: Start difference. First operand 242 states and 334 transitions. Second operand 13 states. [2020-10-13 13:46:26,576 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:26,727 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:46:27,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:27,680 INFO L93 Difference]: Finished difference Result 465 states and 651 transitions. [2020-10-13 13:46:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:46:27,680 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-13 13:46:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:27,683 INFO L225 Difference]: With dead ends: 465 [2020-10-13 13:46:27,683 INFO L226 Difference]: Without dead ends: 247 [2020-10-13 13:46:27,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:46:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-10-13 13:46:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2020-10-13 13:46:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-13 13:46:27,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 338 transitions. [2020-10-13 13:46:27,711 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 338 transitions. Word has length 104 [2020-10-13 13:46:27,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:27,712 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 338 transitions. [2020-10-13 13:46:27,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:46:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2020-10-13 13:46:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 13:46:27,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:27,714 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:27,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:46:27,714 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:27,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:27,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1543793462, now seen corresponding path program 1 times [2020-10-13 13:46:27,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:27,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639049797] [2020-10-13 13:46:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:27,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:27,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:27,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:29,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:32,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:32,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 13:46:32,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:46:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 13:46:32,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-13 13:46:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:46:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:32,989 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:32,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:33,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:46:33,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:46:33,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:33,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:46:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:33,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:46:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:33,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:33,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:46:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:33,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:33,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:33,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:46:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:33,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:33,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:33,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:46:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:33,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:33,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:33,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:33,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:46:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:33,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:33,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:46:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:33,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:33,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:46:33,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639049797] [2020-10-13 13:46:33,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:33,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:46:33,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417409858] [2020-10-13 13:46:33,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:46:33,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:33,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:46:33,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:46:33,311 INFO L87 Difference]: Start difference. First operand 247 states and 338 transitions. Second operand 13 states. [2020-10-13 13:46:34,813 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:34,988 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:46:35,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:35,887 INFO L93 Difference]: Finished difference Result 475 states and 662 transitions. [2020-10-13 13:46:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:46:35,889 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-13 13:46:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:35,892 INFO L225 Difference]: With dead ends: 475 [2020-10-13 13:46:35,892 INFO L226 Difference]: Without dead ends: 252 [2020-10-13 13:46:35,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:46:35,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-13 13:46:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-13 13:46:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-13 13:46:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 342 transitions. [2020-10-13 13:46:35,920 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 342 transitions. Word has length 112 [2020-10-13 13:46:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:35,921 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 342 transitions. [2020-10-13 13:46:35,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:46:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 342 transitions. [2020-10-13 13:46:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 13:46:35,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:35,922 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:35,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:46:35,923 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:35,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:35,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1788970324, now seen corresponding path program 1 times [2020-10-13 13:46:35,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:35,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165827290] [2020-10-13 13:46:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:36,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:37,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:46:40,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:46:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4670 [2020-10-13 13:46:40,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-13 13:46:40,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:46:40,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:40,809 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:40,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:40,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:40,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:46:40,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:40,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:40,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:46:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:40,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:40,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:40,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:40,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:46:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:40,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:40,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:46:40,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:40,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:40,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:40,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:40,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:40,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:40,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:40,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:40,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:40,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:40,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:46:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:40,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:40,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:40,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:46:40,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:40,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:40,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:40,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:46:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:41,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:46:41,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:46:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:41,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:41,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:41,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:46:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:41,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:46:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:41,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:46:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:41,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:41,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:46:41,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165827290] [2020-10-13 13:46:41,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:41,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:46:41,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635089393] [2020-10-13 13:46:41,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:46:41,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:41,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:46:41,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:46:41,249 INFO L87 Difference]: Start difference. First operand 252 states and 342 transitions. Second operand 13 states. [2020-10-13 13:46:42,692 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:46:42,831 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:46:43,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:43,506 INFO L93 Difference]: Finished difference Result 484 states and 666 transitions. [2020-10-13 13:46:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:46:43,507 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-13 13:46:43,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:43,510 INFO L225 Difference]: With dead ends: 484 [2020-10-13 13:46:43,511 INFO L226 Difference]: Without dead ends: 256 [2020-10-13 13:46:43,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:46:43,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-13 13:46:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-10-13 13:46:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-13 13:46:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 345 transitions. [2020-10-13 13:46:43,536 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 345 transitions. Word has length 120 [2020-10-13 13:46:43,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:43,537 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 345 transitions. [2020-10-13 13:46:43,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:46:43,537 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 345 transitions. [2020-10-13 13:46:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 13:46:43,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:43,539 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:43,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:46:43,539 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:43,540 INFO L82 PathProgramCache]: Analyzing trace with hash 255135410, now seen corresponding path program 1 times [2020-10-13 13:46:43,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:43,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230314602] [2020-10-13 13:46:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:43,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:43,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:43,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:43,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:47,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:46:48,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,797 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:48,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:46:48,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:46:48,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:48,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:46:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:48,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:48,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:46:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:48,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:48,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:48,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:48,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:46:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:48,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:48,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:48,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:48,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:46:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:48,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:48,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:48,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:48,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:48,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:48,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:49,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:49,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:46:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:49,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:49,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:46:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:49,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:49,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:46:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:49,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:49,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:46:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:49,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:49,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:46:49,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230314602] [2020-10-13 13:46:49,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:49,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:46:49,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496161518] [2020-10-13 13:46:49,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:46:49,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:49,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:46:49,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:46:49,118 INFO L87 Difference]: Start difference. First operand 256 states and 345 transitions. Second operand 13 states. [2020-10-13 13:46:50,585 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:50,735 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:46:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:51,495 INFO L93 Difference]: Finished difference Result 493 states and 676 transitions. [2020-10-13 13:46:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:46:51,496 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-13 13:46:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:51,499 INFO L225 Difference]: With dead ends: 493 [2020-10-13 13:46:51,499 INFO L226 Difference]: Without dead ends: 261 [2020-10-13 13:46:51,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:46:51,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-13 13:46:51,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2020-10-13 13:46:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-13 13:46:51,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 349 transitions. [2020-10-13 13:46:51,525 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 349 transitions. Word has length 120 [2020-10-13 13:46:51,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:51,525 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 349 transitions. [2020-10-13 13:46:51,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:46:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 349 transitions. [2020-10-13 13:46:51,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 13:46:51,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:51,528 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:51,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:46:51,528 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:51,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:51,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1926279156, now seen corresponding path program 1 times [2020-10-13 13:46:51,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:51,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327017355] [2020-10-13 13:46:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:51,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 13:46:56,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:46:56,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:46:56,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:56,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 13:46:56,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:46:56,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,748 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:46:56,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:56,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:46:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:56,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:56,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:46:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:56,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:56,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:46:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:56,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:46:56,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:56,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:56,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:46:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:56,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:56,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:46:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:56,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:56,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:56,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:56,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:56,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:56,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:56,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:56,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:56,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:56,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:56,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:56,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:56,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:57,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:57,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:46:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:57,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:57,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:46:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:57,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:57,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:57,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:46:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:57,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:57,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:46:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:57,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:57,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 13:46:57,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327017355] [2020-10-13 13:46:57,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:57,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:46:57,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172603745] [2020-10-13 13:46:57,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:46:57,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:57,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:46:57,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:46:57,045 INFO L87 Difference]: Start difference. First operand 261 states and 349 transitions. Second operand 13 states. [2020-10-13 13:46:58,718 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:58,881 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:46:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:59,439 INFO L93 Difference]: Finished difference Result 504 states and 683 transitions. [2020-10-13 13:46:59,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:46:59,445 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-10-13 13:46:59,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:59,447 INFO L225 Difference]: With dead ends: 504 [2020-10-13 13:46:59,447 INFO L226 Difference]: Without dead ends: 267 [2020-10-13 13:46:59,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:46:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-13 13:46:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2020-10-13 13:46:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-13 13:46:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 354 transitions. [2020-10-13 13:46:59,472 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 354 transitions. Word has length 128 [2020-10-13 13:46:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:59,472 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 354 transitions. [2020-10-13 13:46:59,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:46:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 354 transitions. [2020-10-13 13:46:59,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:46:59,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:59,475 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:46:59,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:46:59,475 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:59,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:59,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1079813747, now seen corresponding path program 1 times [2020-10-13 13:46:59,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:59,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208996463] [2020-10-13 13:46:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:00,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:47:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,626 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:04,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:04,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:04,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:04,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:04,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:04,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:47:04,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:47:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:47:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:47:04,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:04,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:47:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:04,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:47:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:04,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:04,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:04,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:47:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:04,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:47:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:04,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:04,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:47:04,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:04,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:47:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:47:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:04,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:04,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:47:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:04,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:47:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:04,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:47:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:04,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:04,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:47:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:04,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:04,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:04,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:04,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:04,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:04,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:04,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:04,970 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:04,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208996463] [2020-10-13 13:47:04,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:04,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:47:04,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106248108] [2020-10-13 13:47:04,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:47:04,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:04,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:47:04,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:47:04,972 INFO L87 Difference]: Start difference. First operand 267 states and 354 transitions. Second operand 15 states. [2020-10-13 13:47:05,231 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:47:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:07,447 INFO L93 Difference]: Finished difference Result 521 states and 694 transitions. [2020-10-13 13:47:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:47:07,447 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 133 [2020-10-13 13:47:07,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:07,450 INFO L225 Difference]: With dead ends: 521 [2020-10-13 13:47:07,450 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 13:47:07,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:47:07,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 13:47:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 277. [2020-10-13 13:47:07,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-13 13:47:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 362 transitions. [2020-10-13 13:47:07,506 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 362 transitions. Word has length 133 [2020-10-13 13:47:07,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:07,507 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 362 transitions. [2020-10-13 13:47:07,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:47:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 362 transitions. [2020-10-13 13:47:07,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:47:07,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:07,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:07,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:47:07,511 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:07,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:07,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2136544949, now seen corresponding path program 1 times [2020-10-13 13:47:07,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:07,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672482472] [2020-10-13 13:47:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:47:12,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:47:12,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:12,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-13 13:47:12,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:47:12,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,697 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:12,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:12,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:12,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:12,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:12,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:12,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:12,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:47:12,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:47:12,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:12,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:12,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:12,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:47:12,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:47:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:12,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:12,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:12,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:12,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:12,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:47:12,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:12,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:12,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:12,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:12,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:12,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:12,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:12,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:47:12,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:12,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:47:12,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:12,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:47:12,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:47:12,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:47:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:13,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:13,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:13,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:13,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:13,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:13,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:13,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:47:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:13,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:13,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:13,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:13,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:13,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:47:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:13,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:13,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:13,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:13,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:13,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:13,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:13,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:13,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:47:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:13,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:13,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:13,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:13,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:13,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:13,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:13,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:47:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:13,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:13,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:13,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:13,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:13,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:13,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:13,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:13,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672482472] [2020-10-13 13:47:13,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:13,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:13,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124558891] [2020-10-13 13:47:13,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:13,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:13,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:13,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:13,085 INFO L87 Difference]: Start difference. First operand 277 states and 362 transitions. Second operand 13 states. [2020-10-13 13:47:13,230 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:14,103 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:47:17,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:17,616 INFO L93 Difference]: Finished difference Result 766 states and 1017 transitions. [2020-10-13 13:47:17,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:47:17,617 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-13 13:47:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:17,622 INFO L225 Difference]: With dead ends: 766 [2020-10-13 13:47:17,622 INFO L226 Difference]: Without dead ends: 517 [2020-10-13 13:47:17,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-10-13 13:47:17,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2020-10-13 13:47:17,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 480. [2020-10-13 13:47:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-13 13:47:17,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 635 transitions. [2020-10-13 13:47:17,678 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 635 transitions. Word has length 133 [2020-10-13 13:47:17,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:17,678 INFO L479 AbstractCegarLoop]: Abstraction has 480 states and 635 transitions. [2020-10-13 13:47:17,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 635 transitions. [2020-10-13 13:47:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 13:47:17,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:17,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:17,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:47:17,681 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:17,682 INFO L82 PathProgramCache]: Analyzing trace with hash 551921824, now seen corresponding path program 1 times [2020-10-13 13:47:17,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:17,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62103396] [2020-10-13 13:47:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:17,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:17,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:17,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:18,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:47:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:47:22,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 13:47:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:47:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:22,869 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:22,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:22,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:22,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:22,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:22,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:22,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:22,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:22,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:22,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:22,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:22,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:22,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:22,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:22,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:22,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:22,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:22,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:22,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:22,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:22,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:22,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:22,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:22,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:22,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:22,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:22,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:22,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:22,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:22,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:23,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:23,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:47:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:23,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:23,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:23,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:47:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:23,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:23,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 13:47:23,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:47:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:47:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:47:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:47:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:23,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:23,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:47:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 13:47:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:23,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 13:47:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:23,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:23,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:23,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62103396] [2020-10-13 13:47:23,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:23,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:23,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390123130] [2020-10-13 13:47:23,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:23,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:23,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:23,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:23,243 INFO L87 Difference]: Start difference. First operand 480 states and 635 transitions. Second operand 13 states. [2020-10-13 13:47:23,399 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:24,527 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:47:28,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:28,159 INFO L93 Difference]: Finished difference Result 1384 states and 1850 transitions. [2020-10-13 13:47:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 13:47:28,160 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2020-10-13 13:47:28,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:28,167 INFO L225 Difference]: With dead ends: 1384 [2020-10-13 13:47:28,167 INFO L226 Difference]: Without dead ends: 932 [2020-10-13 13:47:28,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2020-10-13 13:47:28,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-13 13:47:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 871. [2020-10-13 13:47:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-10-13 13:47:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1158 transitions. [2020-10-13 13:47:28,262 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1158 transitions. Word has length 134 [2020-10-13 13:47:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:28,262 INFO L479 AbstractCegarLoop]: Abstraction has 871 states and 1158 transitions. [2020-10-13 13:47:28,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1158 transitions. [2020-10-13 13:47:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 13:47:28,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:28,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:28,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:47:28,266 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:28,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1497466018, now seen corresponding path program 1 times [2020-10-13 13:47:28,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:28,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175934476] [2020-10-13 13:47:28,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:28,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:28,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:28,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:29,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:47:33,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:33,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:47:33,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:47:33,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 13:47:33,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:33,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,442 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:33,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:33,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:33,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:33,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:33,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:33,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:33,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:33,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 13:47:33,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:47:33,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:47:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:47:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:47:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:47:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:33,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:47:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:47:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:47:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 13:47:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:33,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:33,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:47:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 13:47:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:33,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:33,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:33,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:33,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:47:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 13:47:33,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175934476] [2020-10-13 13:47:33,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:33,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:47:33,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492231274] [2020-10-13 13:47:33,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:47:33,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:33,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:47:33,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:47:33,811 INFO L87 Difference]: Start difference. First operand 871 states and 1158 transitions. Second operand 14 states. [2020-10-13 13:47:34,084 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:47:34,244 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:47:35,656 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:47:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:36,632 INFO L93 Difference]: Finished difference Result 1576 states and 2097 transitions. [2020-10-13 13:47:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:47:36,633 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 134 [2020-10-13 13:47:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:36,639 INFO L225 Difference]: With dead ends: 1576 [2020-10-13 13:47:36,639 INFO L226 Difference]: Without dead ends: 695 [2020-10-13 13:47:36,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:47:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2020-10-13 13:47:36,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2020-10-13 13:47:36,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-10-13 13:47:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 921 transitions. [2020-10-13 13:47:36,724 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 921 transitions. Word has length 134 [2020-10-13 13:47:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:36,724 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 921 transitions. [2020-10-13 13:47:36,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:47:36,724 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 921 transitions. [2020-10-13 13:47:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 13:47:36,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:36,727 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:36,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:47:36,728 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:36,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:36,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1698754778, now seen corresponding path program 1 times [2020-10-13 13:47:36,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:36,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241875194] [2020-10-13 13:47:36,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:36,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:36,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:36,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:37,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:37,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:41,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:41,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:47:41,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:47:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 13:47:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:47:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:47:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:47:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:41,940 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:41,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:41,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:41,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:41,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:41,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:41,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:41,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:41,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:41,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:41,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:41,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:41,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:41,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:41,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:41,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:42,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:47:42,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:42,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:47:42,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:42,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:42,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:47:42,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:47:42,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 13:47:42,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:47:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:47:42,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:42,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:42,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:47:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:42,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:47:42,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:47:42,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:42,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:47:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:42,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:47:42,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:47:42,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:47:42,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:47:42,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:42,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:42,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:42,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:42,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:42,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:47:42,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:47:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:47:42,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:47:42,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:47:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:47:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:42,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:47:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:42,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:47:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:42,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:47:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:42,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:47:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:42,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:42,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:42,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:42,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:42,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:42,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241875194] [2020-10-13 13:47:42,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:42,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:47:42,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695001474] [2020-10-13 13:47:42,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:47:42,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:42,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:47:42,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:47:42,479 INFO L87 Difference]: Start difference. First operand 695 states and 921 transitions. Second operand 18 states. [2020-10-13 13:47:42,680 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:47:43,132 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-13 13:47:43,303 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 13:47:43,531 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:47:43,815 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-13 13:47:44,172 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:47:44,750 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-13 13:47:44,948 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 13:47:45,150 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 13:47:45,326 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:47:46,939 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-13 13:47:47,138 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-13 13:47:47,344 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 13:47:47,521 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 13:47:48,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:48,306 INFO L93 Difference]: Finished difference Result 1558 states and 2080 transitions. [2020-10-13 13:47:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:47:48,307 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 134 [2020-10-13 13:47:48,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:48,313 INFO L225 Difference]: With dead ends: 1558 [2020-10-13 13:47:48,313 INFO L226 Difference]: Without dead ends: 891 [2020-10-13 13:47:48,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:47:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-13 13:47:48,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 858. [2020-10-13 13:47:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2020-10-13 13:47:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1133 transitions. [2020-10-13 13:47:48,490 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1133 transitions. Word has length 134 [2020-10-13 13:47:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:48,490 INFO L479 AbstractCegarLoop]: Abstraction has 858 states and 1133 transitions. [2020-10-13 13:47:48,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:47:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1133 transitions. [2020-10-13 13:47:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 13:47:48,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:48,495 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:48,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:47:48,496 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:48,496 INFO L82 PathProgramCache]: Analyzing trace with hash -58072110, now seen corresponding path program 1 times [2020-10-13 13:47:48,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:48,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473813393] [2020-10-13 13:47:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:48,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:48,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:48,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:49,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:49,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:49,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:47:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,671 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:53,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:53,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:47:53,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:53,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:53,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:47:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:53,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:53,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:47:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:47:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:53,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:53,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:47:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:53,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:47:53,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:54,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:54,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 13:47:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:47:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:47:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:47:54,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:54,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:47:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:47:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:54,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:54,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:47:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:47:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:47:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:54,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:47:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:54,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:54,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:54,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:54,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:54,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:54,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:54,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:54,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473813393] [2020-10-13 13:47:54,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:54,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:47:54,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609199025] [2020-10-13 13:47:54,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:47:54,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:54,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:47:54,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:47:54,124 INFO L87 Difference]: Start difference. First operand 858 states and 1133 transitions. Second operand 18 states. [2020-10-13 13:47:54,313 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:47:54,786 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-13 13:47:54,971 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 13:47:55,205 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:47:55,507 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-13 13:47:55,915 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:47:56,622 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:47:56,869 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 13:47:57,081 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-13 13:47:57,252 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:47:58,930 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-13 13:47:59,150 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:47:59,367 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 13:47:59,562 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-13 13:48:00,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:00,377 INFO L93 Difference]: Finished difference Result 1591 states and 2116 transitions. [2020-10-13 13:48:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:48:00,378 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 135 [2020-10-13 13:48:00,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:00,385 INFO L225 Difference]: With dead ends: 1591 [2020-10-13 13:48:00,385 INFO L226 Difference]: Without dead ends: 912 [2020-10-13 13:48:00,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:48:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-10-13 13:48:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 861. [2020-10-13 13:48:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-13 13:48:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1130 transitions. [2020-10-13 13:48:00,486 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1130 transitions. Word has length 135 [2020-10-13 13:48:00,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:00,487 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1130 transitions. [2020-10-13 13:48:00,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:48:00,487 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1130 transitions. [2020-10-13 13:48:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-13 13:48:00,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:00,490 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:00,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:48:00,491 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:00,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:00,491 INFO L82 PathProgramCache]: Analyzing trace with hash -2079303283, now seen corresponding path program 1 times [2020-10-13 13:48:00,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:00,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589789477] [2020-10-13 13:48:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:00,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:00,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 13:48:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,668 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:05,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:05,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:48:05,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:48:05,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:48:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:05,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:05,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:48:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:05,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:05,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:05,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:48:05,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:05,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:05,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:05,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:05,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:05,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:48:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:05,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:05,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:48:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:05,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:05,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:05,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:05,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:05,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:05,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:05,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:48:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:05,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:06,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:06,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:06,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:06,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:06,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:06,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:06,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:48:06,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:06,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:06,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:06,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:06,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:06,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:06,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:06,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:06,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:06,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:06,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:06,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:06,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:06,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:06,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:06,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:06,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:06,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:06,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:06,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:06,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:06,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:06,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:06,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:06,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:06,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:06,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589789477] [2020-10-13 13:48:06,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:06,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:48:06,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596641076] [2020-10-13 13:48:06,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:48:06,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:06,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:48:06,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:48:06,041 INFO L87 Difference]: Start difference. First operand 861 states and 1130 transitions. Second operand 16 states. [2020-10-13 13:48:06,193 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:48:06,497 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:48:10,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:10,175 INFO L93 Difference]: Finished difference Result 1558 states and 2068 transitions. [2020-10-13 13:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 13:48:10,176 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 137 [2020-10-13 13:48:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:10,181 INFO L225 Difference]: With dead ends: 1558 [2020-10-13 13:48:10,181 INFO L226 Difference]: Without dead ends: 879 [2020-10-13 13:48:10,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 13:48:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-10-13 13:48:10,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 861. [2020-10-13 13:48:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-13 13:48:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1127 transitions. [2020-10-13 13:48:10,274 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1127 transitions. Word has length 137 [2020-10-13 13:48:10,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:10,274 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1127 transitions. [2020-10-13 13:48:10,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:48:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1127 transitions. [2020-10-13 13:48:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-13 13:48:10,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:10,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:10,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:48:10,277 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:10,278 INFO L82 PathProgramCache]: Analyzing trace with hash 554000104, now seen corresponding path program 1 times [2020-10-13 13:48:10,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:10,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007805181] [2020-10-13 13:48:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:10,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:13,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:13,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:48:13,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:48:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3408 [2020-10-13 13:48:13,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:48:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:48:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 13:48:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:13,868 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:13,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:13,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:13,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:13,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:13,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:13,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:13,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:13,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:13,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:13,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:13,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:13,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:13,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:48:13,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:13,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:13,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:13,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:13,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:13,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:13,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:13,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:48:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:14,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:14,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:14,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:14,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:14,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:14,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:14,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:14,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:48:14,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:14,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:14,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:14,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:14,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:14,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:48:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:14,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:48:14,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:48:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:48:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:14,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:14,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:14,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:14,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:14,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:14,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:14,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007805181] [2020-10-13 13:48:14,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:14,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 13:48:14,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606895264] [2020-10-13 13:48:14,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:48:14,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:14,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:48:14,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:48:14,381 INFO L87 Difference]: Start difference. First operand 861 states and 1127 transitions. Second operand 19 states. [2020-10-13 13:48:14,689 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2020-10-13 13:48:14,864 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:15,291 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:16,806 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:48:17,088 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-13 13:48:17,375 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 136 [2020-10-13 13:48:19,003 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:19,161 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:48:19,316 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:48:19,467 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:48:20,494 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:48:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:22,170 INFO L93 Difference]: Finished difference Result 2364 states and 3141 transitions. [2020-10-13 13:48:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 13:48:22,171 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 138 [2020-10-13 13:48:22,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:22,181 INFO L225 Difference]: With dead ends: 2364 [2020-10-13 13:48:22,181 INFO L226 Difference]: Without dead ends: 1694 [2020-10-13 13:48:22,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:48:22,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2020-10-13 13:48:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1648. [2020-10-13 13:48:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-10-13 13:48:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2187 transitions. [2020-10-13 13:48:22,381 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2187 transitions. Word has length 138 [2020-10-13 13:48:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:22,381 INFO L479 AbstractCegarLoop]: Abstraction has 1648 states and 2187 transitions. [2020-10-13 13:48:22,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:48:22,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2187 transitions. [2020-10-13 13:48:22,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-13 13:48:22,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:22,385 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:22,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:48:22,385 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:22,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:22,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1746082505, now seen corresponding path program 1 times [2020-10-13 13:48:22,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:22,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288297865] [2020-10-13 13:48:22,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 13:48:22,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 13:48:22,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-10-13 13:48:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:48:22,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:22,882 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:22,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:48:22,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:22,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:22,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:22,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:22,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:22,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:22,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:22,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:22,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:48:22,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:22,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:22,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:22,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:22,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:22,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:22,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:22,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:22,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:48:22,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:23,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:23,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:23,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:23,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:23,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:23,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:23,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:23,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:48:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:48:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:23,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:23,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:48:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:23,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:23,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:48:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:23,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:23,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:48:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:23,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:23,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:23,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288297865] [2020-10-13 13:48:23,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:23,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:48:23,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145286926] [2020-10-13 13:48:23,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:48:23,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:23,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:48:23,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:48:23,196 INFO L87 Difference]: Start difference. First operand 1648 states and 2187 transitions. Second operand 13 states. [2020-10-13 13:48:24,787 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:48:24,938 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:48:25,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:25,815 INFO L93 Difference]: Finished difference Result 3050 states and 4091 transitions. [2020-10-13 13:48:25,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:48:25,816 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-13 13:48:25,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:25,823 INFO L225 Difference]: With dead ends: 3050 [2020-10-13 13:48:25,823 INFO L226 Difference]: Without dead ends: 1684 [2020-10-13 13:48:25,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:48:25,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2020-10-13 13:48:26,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2020-10-13 13:48:26,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-10-13 13:48:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2214 transitions. [2020-10-13 13:48:26,043 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2214 transitions. Word has length 140 [2020-10-13 13:48:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:26,043 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 2214 transitions. [2020-10-13 13:48:26,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:48:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2214 transitions. [2020-10-13 13:48:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 13:48:26,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:26,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:26,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:48:26,047 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:26,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1761290840, now seen corresponding path program 1 times [2020-10-13 13:48:26,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:26,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295851386] [2020-10-13 13:48:26,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:26,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 13:48:28,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:48:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2593 [2020-10-13 13:48:28,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,869 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:28,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:48:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:48:28,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:29,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:48:29,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:29,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:29,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:48:29,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:29,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:29,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:48:29,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:29,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:29,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:29,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:48:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:29,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:29,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:48:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:48:29,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:48:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 13:48:29,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:48:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 13:48:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:29,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:29,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:29,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:29,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:48:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:29,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:29,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:29,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:29,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 13:48:29,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295851386] [2020-10-13 13:48:29,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:29,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 13:48:29,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113079948] [2020-10-13 13:48:29,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:48:29,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:29,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:48:29,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:48:29,437 INFO L87 Difference]: Start difference. First operand 1684 states and 2214 transitions. Second operand 19 states. [2020-10-13 13:48:29,658 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:48:29,830 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:48:30,739 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:48:32,013 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:48:33,954 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:34,191 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:34,400 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:34,636 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:48:34,854 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:48:35,117 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:48:35,676 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:48:38,308 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:48:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:39,144 INFO L93 Difference]: Finished difference Result 3830 states and 4970 transitions. [2020-10-13 13:48:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 13:48:39,144 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 146 [2020-10-13 13:48:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:39,157 INFO L225 Difference]: With dead ends: 3830 [2020-10-13 13:48:39,157 INFO L226 Difference]: Without dead ends: 2461 [2020-10-13 13:48:39,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-13 13:48:39,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2020-10-13 13:48:39,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 1693. [2020-10-13 13:48:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1693 states. [2020-10-13 13:48:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2165 transitions. [2020-10-13 13:48:39,390 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2165 transitions. Word has length 146 [2020-10-13 13:48:39,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:39,390 INFO L479 AbstractCegarLoop]: Abstraction has 1693 states and 2165 transitions. [2020-10-13 13:48:39,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:48:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2165 transitions. [2020-10-13 13:48:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 13:48:39,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:39,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:39,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:48:39,394 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:39,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash -647886319, now seen corresponding path program 1 times [2020-10-13 13:48:39,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:39,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692774428] [2020-10-13 13:48:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:39,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:39,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 804 [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 13:48:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 13:48:40,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,387 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:40,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:40,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:40,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:40,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:40,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:40,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:40,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:48:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:40,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:48:40,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:40,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:40,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:48:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:48:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:48:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:40,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:40,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:48:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:40,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:48:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:40,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:40,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 13:48:40,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692774428] [2020-10-13 13:48:40,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:40,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:48:40,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744052812] [2020-10-13 13:48:40,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:48:40,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:40,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:48:40,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:48:40,900 INFO L87 Difference]: Start difference. First operand 1693 states and 2165 transitions. Second operand 18 states. [2020-10-13 13:48:41,116 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:48:41,297 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:48:43,269 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:48:44,880 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:48:45,051 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:48:45,243 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:48:45,422 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:48:45,599 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:48:45,777 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:48:49,291 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:48:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:51,437 INFO L93 Difference]: Finished difference Result 3259 states and 4302 transitions. [2020-10-13 13:48:51,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-13 13:48:51,440 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 147 [2020-10-13 13:48:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:51,450 INFO L225 Difference]: With dead ends: 3259 [2020-10-13 13:48:51,451 INFO L226 Difference]: Without dead ends: 2082 [2020-10-13 13:48:51,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=503, Invalid=1849, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:48:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2020-10-13 13:48:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1673. [2020-10-13 13:48:51,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1673 states. [2020-10-13 13:48:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2130 transitions. [2020-10-13 13:48:51,705 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2130 transitions. Word has length 147 [2020-10-13 13:48:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:51,707 INFO L479 AbstractCegarLoop]: Abstraction has 1673 states and 2130 transitions. [2020-10-13 13:48:51,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:48:51,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2130 transitions. [2020-10-13 13:48:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:48:51,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:51,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:51,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:48:51,710 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:51,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:51,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1522611423, now seen corresponding path program 1 times [2020-10-13 13:48:51,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:51,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77120745] [2020-10-13 13:48:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:51,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 13:48:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 13:48:52,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,377 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:52,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:52,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:52,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:52,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:52,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:48:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:52,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:52,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:48:52,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:52,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:52,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:48:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:48:52,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:48:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:48:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:52,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:52,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:48:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:52,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:52,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 13:48:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:52,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:52,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:52,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:52,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:48:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:52,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:52,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:52,887 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 13:48:52,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77120745] [2020-10-13 13:48:52,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:52,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:48:52,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90540825] [2020-10-13 13:48:52,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:48:52,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:52,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:48:52,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:48:52,889 INFO L87 Difference]: Start difference. First operand 1673 states and 2130 transitions. Second operand 18 states. [2020-10-13 13:48:53,061 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:48:54,218 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:48:56,298 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:48:56,508 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:48:56,710 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:48:57,043 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-10-13 13:49:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:00,398 INFO L93 Difference]: Finished difference Result 2972 states and 3832 transitions. [2020-10-13 13:49:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 13:49:00,399 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 148 [2020-10-13 13:49:00,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:00,413 INFO L225 Difference]: With dead ends: 2972 [2020-10-13 13:49:00,414 INFO L226 Difference]: Without dead ends: 1799 [2020-10-13 13:49:00,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:49:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2020-10-13 13:49:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1634. [2020-10-13 13:49:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-10-13 13:49:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2072 transitions. [2020-10-13 13:49:00,619 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2072 transitions. Word has length 148 [2020-10-13 13:49:00,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:00,620 INFO L479 AbstractCegarLoop]: Abstraction has 1634 states and 2072 transitions. [2020-10-13 13:49:00,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:49:00,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2072 transitions. [2020-10-13 13:49:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:49:00,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:00,622 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:49:00,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:49:00,623 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:00,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1631340929, now seen corresponding path program 1 times [2020-10-13 13:49:00,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:00,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138433128] [2020-10-13 13:49:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:00,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:00,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:00,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 13:49:00,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:00,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-13 13:49:00,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:00,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-13 13:49:00,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 13:49:00,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:00,995 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:00,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:01,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:01,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:01,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:01,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:01,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:01,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:49:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:01,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:01,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:49:01,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:49:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:01,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:49:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:01,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:01,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:01,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:49:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 13:49:01,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:49:01,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 13:49:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:49:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:01,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:01,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:01,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:49:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:01,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:49:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:01,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:01,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:01,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:01,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 13:49:01,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138433128] [2020-10-13 13:49:01,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:01,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:49:01,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797219586] [2020-10-13 13:49:01,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:49:01,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:01,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:49:01,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:49:01,375 INFO L87 Difference]: Start difference. First operand 1634 states and 2072 transitions. Second operand 14 states. [2020-10-13 13:49:01,531 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:49:02,490 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:07,754 INFO L93 Difference]: Finished difference Result 4608 states and 5901 transitions. [2020-10-13 13:49:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 13:49:07,755 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 148 [2020-10-13 13:49:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:07,771 INFO L225 Difference]: With dead ends: 4608 [2020-10-13 13:49:07,771 INFO L226 Difference]: Without dead ends: 3461 [2020-10-13 13:49:07,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 13:49:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2020-10-13 13:49:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3194. [2020-10-13 13:49:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3194 states. [2020-10-13 13:49:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 4062 transitions. [2020-10-13 13:49:08,144 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 4062 transitions. Word has length 148 [2020-10-13 13:49:08,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:08,144 INFO L479 AbstractCegarLoop]: Abstraction has 3194 states and 4062 transitions. [2020-10-13 13:49:08,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:49:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 4062 transitions. [2020-10-13 13:49:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 13:49:08,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:08,148 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:49:08,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:49:08,148 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:08,148 INFO L82 PathProgramCache]: Analyzing trace with hash -2143827388, now seen corresponding path program 1 times [2020-10-13 13:49:08,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:08,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292275562] [2020-10-13 13:49:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:08,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:08,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:08,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:12,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:49:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,371 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:13,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:13,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:13,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:13,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:13,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:13,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:13,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:13,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:13,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:49:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:13,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:13,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:13,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:13,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:13,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:13,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:13,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:13,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:49:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:13,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:13,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 13:49:14,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:49:14,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-10-13 13:49:14,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:49:14,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:49:14,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:49:14,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:14,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:14,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:14,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:14,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:14,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:14,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:14,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:14,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:49:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:14,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:14,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:14,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:49:14,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:49:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:49:14,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:49:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:14,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:49:14,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:14,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:49:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 13:49:14,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292275562] [2020-10-13 13:49:14,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:14,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-13 13:49:14,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627237444] [2020-10-13 13:49:14,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 13:49:14,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:14,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 13:49:14,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:49:14,457 INFO L87 Difference]: Start difference. First operand 3194 states and 4062 transitions. Second operand 21 states. [2020-10-13 13:49:14,649 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:17,084 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:17,724 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:17,877 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:18,048 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:49:18,347 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:49:18,571 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:49:18,758 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:49:19,974 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:49:21,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:21,581 INFO L93 Difference]: Finished difference Result 6188 states and 7891 transitions. [2020-10-13 13:49:21,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:49:21,583 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 149 [2020-10-13 13:49:21,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:21,598 INFO L225 Difference]: With dead ends: 6188 [2020-10-13 13:49:21,599 INFO L226 Difference]: Without dead ends: 3647 [2020-10-13 13:49:21,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:49:21,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2020-10-13 13:49:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3292. [2020-10-13 13:49:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3292 states. [2020-10-13 13:49:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 4147 transitions. [2020-10-13 13:49:22,187 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 4147 transitions. Word has length 149 [2020-10-13 13:49:22,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:22,188 INFO L479 AbstractCegarLoop]: Abstraction has 3292 states and 4147 transitions. [2020-10-13 13:49:22,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 13:49:22,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 4147 transitions. [2020-10-13 13:49:22,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:49:22,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:22,192 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:49:22,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 13:49:22,192 INFO L427 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1998716393, now seen corresponding path program 1 times [2020-10-13 13:49:22,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:22,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389636400] [2020-10-13 13:49:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 13:49:22,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 13:49:22,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 13:49:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 13:49:22,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,660 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:22,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:22,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:22,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:22,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:22,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:49:22,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:49:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:22,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:49:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:22,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:49:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 13:49:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:49:22,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:22,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:22,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:22,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:22,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:22,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:22,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:22,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:23,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:49:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:23,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:23,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:23,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:49:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 13:49:23,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389636400] [2020-10-13 13:49:23,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:23,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:49:23,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591205416] [2020-10-13 13:49:23,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:49:23,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:23,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:49:23,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:49:23,025 INFO L87 Difference]: Start difference. First operand 3292 states and 4147 transitions. Second operand 14 states. [2020-10-13 13:49:23,192 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:49:25,668 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:49:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:30,341 INFO L93 Difference]: Finished difference Result 8854 states and 11309 transitions. [2020-10-13 13:49:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:49:30,342 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 150 [2020-10-13 13:49:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:30,375 INFO L225 Difference]: With dead ends: 8854 [2020-10-13 13:49:30,375 INFO L226 Difference]: Without dead ends: 6671 [2020-10-13 13:49:30,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 13:49:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2020-10-13 13:49:30,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 5471. [2020-10-13 13:49:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5471 states. [2020-10-13 13:49:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 6925 transitions. [2020-10-13 13:49:30,919 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 6925 transitions. Word has length 150 [2020-10-13 13:49:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:30,919 INFO L479 AbstractCegarLoop]: Abstraction has 5471 states and 6925 transitions. [2020-10-13 13:49:30,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:49:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 6925 transitions. [2020-10-13 13:49:30,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:49:30,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:30,922 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:49:30,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 13:49:30,922 INFO L427 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:30,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:30,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1495836444, now seen corresponding path program 1 times [2020-10-13 13:49:30,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:30,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840621766] [2020-10-13 13:49:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 13:49:31,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:49:31,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-10-13 13:49:31,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:49:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:49:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:49:31,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,767 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:31,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:31,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:31,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:31,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:31,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:31,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:31,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:49:31,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:49:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:31,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 13:49:31,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:49:31,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:49:31,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:49:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:49:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:31,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:31,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:31,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:31,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:31,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:31,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:31,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:31,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:31,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:31,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:49:31,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:49:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 13:49:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:49:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:32,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:32,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 13:49:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:32,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:32,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:49:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-13 13:49:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:32,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:32,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:49:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:49:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:32,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:32,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:32,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 13:49:32,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840621766] [2020-10-13 13:49:32,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:32,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:49:32,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476658081] [2020-10-13 13:49:32,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:49:32,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:32,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:49:32,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:49:32,149 INFO L87 Difference]: Start difference. First operand 5471 states and 6925 transitions. Second operand 15 states. [2020-10-13 13:49:32,303 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:49:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:36,268 INFO L93 Difference]: Finished difference Result 9835 states and 12488 transitions. [2020-10-13 13:49:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:49:36,268 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 150 [2020-10-13 13:49:36,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:36,288 INFO L225 Difference]: With dead ends: 9835 [2020-10-13 13:49:36,288 INFO L226 Difference]: Without dead ends: 4689 [2020-10-13 13:49:36,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=264, Invalid=792, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:49:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4689 states. [2020-10-13 13:49:36,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4689 to 4673. [2020-10-13 13:49:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4673 states. [2020-10-13 13:49:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4673 states to 4673 states and 5931 transitions. [2020-10-13 13:49:36,917 INFO L78 Accepts]: Start accepts. Automaton has 4673 states and 5931 transitions. Word has length 150 [2020-10-13 13:49:36,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:36,917 INFO L479 AbstractCegarLoop]: Abstraction has 4673 states and 5931 transitions. [2020-10-13 13:49:36,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:49:36,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4673 states and 5931 transitions. [2020-10-13 13:49:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:49:36,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:36,920 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:49:36,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 13:49:36,920 INFO L427 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:36,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:36,920 INFO L82 PathProgramCache]: Analyzing trace with hash 659046460, now seen corresponding path program 1 times [2020-10-13 13:49:36,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:36,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140215969] [2020-10-13 13:49:36,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:36,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking...