/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_find_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 17:55:42,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 17:55:42,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 17:55:42,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 17:55:42,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 17:55:42,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 17:55:42,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 17:55:42,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 17:55:42,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 17:55:42,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 17:55:42,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 17:55:42,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 17:55:42,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 17:55:42,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 17:55:42,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 17:55:42,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 17:55:42,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 17:55:42,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 17:55:42,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 17:55:42,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 17:55:42,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 17:55:42,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 17:55:42,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 17:55:42,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 17:55:42,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 17:55:42,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 17:55:42,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 17:55:42,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 17:55:42,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 17:55:42,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 17:55:42,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 17:55:42,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 17:55:42,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 17:55:42,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 17:55:42,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 17:55:42,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 17:55:42,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 17:55:42,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 17:55:42,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 17:55:42,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 17:55:42,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 17:55:42,748 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 [2020-10-14 17:55:42,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 17:55:42,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 17:55:42,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 17:55:42,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 17:55:42,792 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 17:55:42,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 17:55:42,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 17:55:42,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 17:55:42,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 17:55:42,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 17:55:42,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 17:55:42,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 17:55:42,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 17:55:42,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 17:55:42,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 17:55:42,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 17:55:42,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 17:55:42,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 17:55:42,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 17:55:42,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 17:55:42,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 17:55:42,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 17:55:42,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 17:55:42,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 17:55:42,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 17:55:42,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 17:55:42,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 17:55:42,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 17:55:42,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 17:55:42,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 17:55:43,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 17:55:43,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 17:55:43,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 17:55:43,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 17:55:43,147 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 17:55:43,148 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_find_ground-1.i [2020-10-14 17:55:43,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb5d401e4/259b03f41c5d48a7ba3f7b89982b7e0d/FLAG3e612327d [2020-10-14 17:55:43,617 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 17:55:43,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/standard_find_ground-1.i [2020-10-14 17:55:43,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb5d401e4/259b03f41c5d48a7ba3f7b89982b7e0d/FLAG3e612327d [2020-10-14 17:55:44,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb5d401e4/259b03f41c5d48a7ba3f7b89982b7e0d [2020-10-14 17:55:44,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 17:55:44,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 17:55:44,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 17:55:44,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 17:55:44,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 17:55:44,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b24d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44, skipping insertion in model container [2020-10-14 17:55:44,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 17:55:44,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 17:55:44,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:55:44,277 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 17:55:44,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:55:44,311 INFO L208 MainTranslator]: Completed translation [2020-10-14 17:55:44,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44 WrapperNode [2020-10-14 17:55:44,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 17:55:44,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 17:55:44,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 17:55:44,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 17:55:44,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (1/1) ... [2020-10-14 17:55:44,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 17:55:44,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 17:55:44,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 17:55:44,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 17:55:44,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (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 [2020-10-14 17:55:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 17:55:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 17:55:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 17:55:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 17:55:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 17:55:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 17:55:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 17:55:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 17:55:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 17:55:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 17:55:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 17:55:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 17:55:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 17:55:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 17:55:44,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 17:55:44,744 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 17:55:44,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:55:44 BoogieIcfgContainer [2020-10-14 17:55:44,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 17:55:44,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 17:55:44,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 17:55:44,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 17:55:44,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:55:44" (1/3) ... [2020-10-14 17:55:44,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434fcc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:55:44, skipping insertion in model container [2020-10-14 17:55:44,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:55:44" (2/3) ... [2020-10-14 17:55:44,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434fcc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:55:44, skipping insertion in model container [2020-10-14 17:55:44,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:55:44" (3/3) ... [2020-10-14 17:55:44,757 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_find_ground-1.i [2020-10-14 17:55:44,768 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 17:55:44,776 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 17:55:44,795 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 17:55:44,826 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 17:55:44,826 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 17:55:44,826 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 17:55:44,827 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 17:55:44,827 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 17:55:44,827 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 17:55:44,827 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 17:55:44,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 17:55:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-14 17:55:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 17:55:44,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:44,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:44,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:44,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1063635089, now seen corresponding path program 1 times [2020-10-14 17:55:44,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:44,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068508855] [2020-10-14 17:55:44,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:45,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:45,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:45,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:45,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:45,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 17:55:45,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:55:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-14 17:55:45,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:45,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 17:55:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 17:55:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 17:55:45,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:45,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:45,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:45,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:45,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:55:45,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:45,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:45,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:55:45,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068508855] [2020-10-14 17:55:45,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:55:45,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 17:55:45,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021095226] [2020-10-14 17:55:45,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 17:55:45,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:45,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 17:55:45,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 17:55:45,393 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-10-14 17:55:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:45,535 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2020-10-14 17:55:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 17:55:45,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 17:55:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:45,547 INFO L225 Difference]: With dead ends: 54 [2020-10-14 17:55:45,548 INFO L226 Difference]: Without dead ends: 25 [2020-10-14 17:55:45,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 17:55:45,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-14 17:55:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-14 17:55:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-14 17:55:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-10-14 17:55:45,592 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 14 [2020-10-14 17:55:45,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:45,592 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-10-14 17:55:45,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 17:55:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2020-10-14 17:55:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 17:55:45,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:45,594 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:45,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 17:55:45,594 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:45,595 INFO L82 PathProgramCache]: Analyzing trace with hash 204725122, now seen corresponding path program 1 times [2020-10-14 17:55:45,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:45,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494652697] [2020-10-14 17:55:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:45,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:45,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:45,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 17:55:45,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:45,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-14 17:55:45,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:45,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:45,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 17:55:45,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:45,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 17:55:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:46,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:46,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:46,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:46,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:46,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:46,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:46,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:55:46,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494652697] [2020-10-14 17:55:46,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:46,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 17:55:46,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048039827] [2020-10-14 17:55:46,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 17:55:46,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:46,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 17:55:46,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-14 17:55:46,119 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 10 states. [2020-10-14 17:55:46,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:46,347 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-10-14 17:55:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 17:55:46,348 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-14 17:55:46,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:46,349 INFO L225 Difference]: With dead ends: 35 [2020-10-14 17:55:46,349 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 17:55:46,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-14 17:55:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 17:55:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-10-14 17:55:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 17:55:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-10-14 17:55:46,360 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-10-14 17:55:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:46,360 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-10-14 17:55:46,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 17:55:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-10-14 17:55:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 17:55:46,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:46,362 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] [2020-10-14 17:55:46,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 17:55:46,363 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:46,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:46,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2053165895, now seen corresponding path program 1 times [2020-10-14 17:55:46,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:46,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329118627] [2020-10-14 17:55:46,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:46,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:46,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 17:55:46,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 17:55:46,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:46,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 17:55:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:55:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:46,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:46,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:46,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:46,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:46,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:46,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:46,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 17:55:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:46,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:46,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:46,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:46,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:46,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:55:46,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329118627] [2020-10-14 17:55:46,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:46,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 17:55:46,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189050872] [2020-10-14 17:55:46,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 17:55:46,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:46,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 17:55:46,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 17:55:46,584 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 7 states. [2020-10-14 17:55:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:46,685 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-10-14 17:55:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 17:55:46,686 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-14 17:55:46,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:46,690 INFO L225 Difference]: With dead ends: 50 [2020-10-14 17:55:46,690 INFO L226 Difference]: Without dead ends: 34 [2020-10-14 17:55:46,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 17:55:46,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-14 17:55:46,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-14 17:55:46,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 17:55:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-10-14 17:55:46,704 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 27 [2020-10-14 17:55:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:46,704 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-10-14 17:55:46,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 17:55:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-10-14 17:55:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 17:55:46,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:46,706 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:46,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 17:55:46,707 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:46,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:46,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1322291195, now seen corresponding path program 2 times [2020-10-14 17:55:46,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:46,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332028694] [2020-10-14 17:55:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:46,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:46,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:46,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 17:55:46,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 17:55:46,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:46,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 17:55:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 17:55:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:47,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:47,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:47,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:47,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:47,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:47,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:47,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:55:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:47,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:47,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:47,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:55:47,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:47,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:47,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:55:47,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332028694] [2020-10-14 17:55:47,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:47,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 17:55:47,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251691982] [2020-10-14 17:55:47,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 17:55:47,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:47,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 17:55:47,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-14 17:55:47,124 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 12 states. [2020-10-14 17:55:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:47,535 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2020-10-14 17:55:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 17:55:47,536 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-10-14 17:55:47,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:47,537 INFO L225 Difference]: With dead ends: 50 [2020-10-14 17:55:47,537 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 17:55:47,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2020-10-14 17:55:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 17:55:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-10-14 17:55:47,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 17:55:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-10-14 17:55:47,546 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 30 [2020-10-14 17:55:47,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:47,547 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-10-14 17:55:47,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 17:55:47,547 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-10-14 17:55:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 17:55:47,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:47,548 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:47,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 17:55:47,549 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:47,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:47,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1858833980, now seen corresponding path program 3 times [2020-10-14 17:55:47,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:47,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804598415] [2020-10-14 17:55:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:47,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 17:55:47,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:47,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 17:55:47,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:47,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:47,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 17:55:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 17:55:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 17:55:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:47,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:47,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:47,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:47,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:55:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:47,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:47,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:47,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:47,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 17:55:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:47,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:47,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:47,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:47,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:47,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:47,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:47,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 17:55:47,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804598415] [2020-10-14 17:55:47,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:47,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 17:55:47,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571548112] [2020-10-14 17:55:47,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 17:55:47,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:47,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 17:55:47,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 17:55:47,818 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 9 states. [2020-10-14 17:55:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:47,944 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-10-14 17:55:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:55:47,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-14 17:55:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:47,946 INFO L225 Difference]: With dead ends: 65 [2020-10-14 17:55:47,946 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 17:55:47,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-14 17:55:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 17:55:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-14 17:55:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 17:55:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2020-10-14 17:55:47,955 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 38 [2020-10-14 17:55:47,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:47,956 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2020-10-14 17:55:47,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 17:55:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-10-14 17:55:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 17:55:47,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:47,957 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:47,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 17:55:47,958 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:47,958 INFO L82 PathProgramCache]: Analyzing trace with hash 809534320, now seen corresponding path program 4 times [2020-10-14 17:55:47,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:47,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017202802] [2020-10-14 17:55:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:48,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:48,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:48,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 17:55:48,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-14 17:55:48,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:48,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 17:55:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 17:55:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:48,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:48,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:48,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:48,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:48,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:48,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:48,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 17:55:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:48,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:48,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:48,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:48,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:48,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:48,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:48,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:48,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 17:55:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:48,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:48,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:48,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:48,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 17:55:48,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017202802] [2020-10-14 17:55:48,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:48,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 17:55:48,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096929036] [2020-10-14 17:55:48,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 17:55:48,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:48,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 17:55:48,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:55:48,428 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 14 states. [2020-10-14 17:55:48,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:48,831 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2020-10-14 17:55:48,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 17:55:48,832 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-14 17:55:48,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:48,833 INFO L225 Difference]: With dead ends: 67 [2020-10-14 17:55:48,833 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 17:55:48,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2020-10-14 17:55:48,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 17:55:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-14 17:55:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 17:55:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-10-14 17:55:48,842 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 41 [2020-10-14 17:55:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:48,842 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-10-14 17:55:48,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 17:55:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-10-14 17:55:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 17:55:48,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:48,844 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:48,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 17:55:48,844 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:48,845 INFO L82 PathProgramCache]: Analyzing trace with hash -104656452, now seen corresponding path program 5 times [2020-10-14 17:55:48,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:48,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154838423] [2020-10-14 17:55:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:48,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:48,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:49,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:49,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 17:55:49,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 17:55:49,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:49,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:49,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 17:55:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 17:55:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:49,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:49,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:49,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:49,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:49,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:49,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:49,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:55:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:49,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:49,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:49,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:49,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 17:55:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:49,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:49,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:49,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:55:49,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:49,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 17:55:49,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154838423] [2020-10-14 17:55:49,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:49,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 17:55:49,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421605142] [2020-10-14 17:55:49,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 17:55:49,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:49,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 17:55:49,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:55:49,315 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 14 states. [2020-10-14 17:55:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:49,907 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2020-10-14 17:55:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 17:55:49,907 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-10-14 17:55:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:49,909 INFO L225 Difference]: With dead ends: 68 [2020-10-14 17:55:49,909 INFO L226 Difference]: Without dead ends: 66 [2020-10-14 17:55:49,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2020-10-14 17:55:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-14 17:55:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2020-10-14 17:55:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-14 17:55:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2020-10-14 17:55:49,918 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 44 [2020-10-14 17:55:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:49,919 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2020-10-14 17:55:49,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 17:55:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2020-10-14 17:55:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 17:55:49,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:49,920 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:49,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 17:55:49,921 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:49,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:49,921 INFO L82 PathProgramCache]: Analyzing trace with hash 2065271027, now seen corresponding path program 6 times [2020-10-14 17:55:49,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:49,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185608195] [2020-10-14 17:55:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:49,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:49,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:50,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:50,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 17:55:50,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-14 17:55:50,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:50,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 17:55:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 17:55:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:50,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:50,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:50,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:50,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:50,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:50,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:50,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:50,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:50,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:55:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:50,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:50,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:50,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:50,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 17:55:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:50,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:50,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:50,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:50,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:50,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:50,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:50,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:50,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:50,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:50,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:50,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 17:55:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:50,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:50,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:50,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:50,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:50,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:50,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 17:55:50,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185608195] [2020-10-14 17:55:50,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:50,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 17:55:50,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632486595] [2020-10-14 17:55:50,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 17:55:50,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:50,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 17:55:50,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-14 17:55:50,504 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 16 states. [2020-10-14 17:55:50,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:50,994 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2020-10-14 17:55:50,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 17:55:50,994 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2020-10-14 17:55:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:50,996 INFO L225 Difference]: With dead ends: 82 [2020-10-14 17:55:50,996 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 17:55:50,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2020-10-14 17:55:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 17:55:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-14 17:55:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-14 17:55:51,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2020-10-14 17:55:51,013 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 52 [2020-10-14 17:55:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:51,014 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2020-10-14 17:55:51,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 17:55:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2020-10-14 17:55:51,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 17:55:51,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:51,017 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:51,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 17:55:51,018 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:51,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:51,018 INFO L82 PathProgramCache]: Analyzing trace with hash -556838105, now seen corresponding path program 7 times [2020-10-14 17:55:51,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:51,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941468517] [2020-10-14 17:55:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:51,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:51,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:51,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:51,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 17:55:51,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-14 17:55:51,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:51,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 17:55:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:55:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:51,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:51,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:51,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:51,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:51,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:51,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:51,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:51,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:51,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 17:55:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:51,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:51,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:51,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:51,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:51,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:51,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:51,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 17:55:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:51,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:51,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:51,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:51,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:51,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:51,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:51,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:51,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 17:55:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:51,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:51,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:51,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:51,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:51,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:51,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:51,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:51,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 17:55:51,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941468517] [2020-10-14 17:55:51,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:51,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 17:55:51,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550208610] [2020-10-14 17:55:51,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 17:55:51,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:51,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 17:55:51,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-14 17:55:51,736 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand 16 states. [2020-10-14 17:55:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:52,587 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2020-10-14 17:55:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 17:55:52,588 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 55 [2020-10-14 17:55:52,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:52,589 INFO L225 Difference]: With dead ends: 83 [2020-10-14 17:55:52,589 INFO L226 Difference]: Without dead ends: 81 [2020-10-14 17:55:52,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2020-10-14 17:55:52,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-14 17:55:52,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 67. [2020-10-14 17:55:52,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-14 17:55:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2020-10-14 17:55:52,599 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 55 [2020-10-14 17:55:52,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:52,600 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2020-10-14 17:55:52,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 17:55:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2020-10-14 17:55:52,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 17:55:52,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:52,601 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:52,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 17:55:52,601 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:52,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:52,602 INFO L82 PathProgramCache]: Analyzing trace with hash -319869090, now seen corresponding path program 8 times [2020-10-14 17:55:52,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:52,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416357148] [2020-10-14 17:55:52,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:52,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:52,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:52,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 17:55:52,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-14 17:55:52,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:52,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 17:55:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 17:55:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:53,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:53,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:55:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:53,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 17:55:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:53,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:53,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:53,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:53,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:53,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 17:55:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:53,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:53,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:53,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:53,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:53,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:53,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 17:55:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:53,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:53,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:53,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:53,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:53,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:53,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:53,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 17:55:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:53,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:53,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:53,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:53,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:53,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:53,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:53,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:53,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:53,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:53,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 32 proven. 53 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 17:55:53,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416357148] [2020-10-14 17:55:53,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:53,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 17:55:53,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624387262] [2020-10-14 17:55:53,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 17:55:53,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:53,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 17:55:53,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2020-10-14 17:55:53,258 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 18 states. [2020-10-14 17:55:54,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:54,163 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2020-10-14 17:55:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 17:55:54,163 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 63 [2020-10-14 17:55:54,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:54,165 INFO L225 Difference]: With dead ends: 99 [2020-10-14 17:55:54,165 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 17:55:54,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=879, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 17:55:54,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 17:55:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-10-14 17:55:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-14 17:55:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2020-10-14 17:55:54,186 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 63 [2020-10-14 17:55:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:54,187 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2020-10-14 17:55:54,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 17:55:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2020-10-14 17:55:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 17:55:54,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:54,190 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:54,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 17:55:54,191 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:54,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1387052202, now seen corresponding path program 9 times [2020-10-14 17:55:54,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:54,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747363171] [2020-10-14 17:55:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:54,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:54,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:54,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:54,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 17:55:54,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:54,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-14 17:55:54,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:54,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 17:55:54,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:54,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 17:55:54,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:55,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:55,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:55,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:55,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:55,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:55,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:55,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:55,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:55,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:55,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 17:55:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:55,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:55,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:55,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:55,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:55,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:55,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:55,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:55,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 17:55:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:55,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:55,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:55,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:55,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:55,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:55,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:55,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:55,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 17:55:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:55,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:55,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:55,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:55,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:55,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:55,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 17:55:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:55,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:55,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:55,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:55,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:55,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:55,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:55,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:55,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-14 17:55:55,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747363171] [2020-10-14 17:55:55,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:55,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 17:55:55,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776764432] [2020-10-14 17:55:55,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 17:55:55,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:55,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 17:55:55,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-14 17:55:55,212 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand 18 states. [2020-10-14 17:55:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:56,210 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2020-10-14 17:55:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 17:55:56,211 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 66 [2020-10-14 17:55:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:56,213 INFO L225 Difference]: With dead ends: 100 [2020-10-14 17:55:56,213 INFO L226 Difference]: Without dead ends: 98 [2020-10-14 17:55:56,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=1135, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 17:55:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-14 17:55:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 79. [2020-10-14 17:55:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 17:55:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2020-10-14 17:55:56,235 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 66 [2020-10-14 17:55:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:56,235 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2020-10-14 17:55:56,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 17:55:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2020-10-14 17:55:56,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 17:55:56,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:56,240 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:56,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 17:55:56,240 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash 609773025, now seen corresponding path program 10 times [2020-10-14 17:55:56,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:56,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371754789] [2020-10-14 17:55:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:56,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:56,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:56,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 17:55:56,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-14 17:55:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:56,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 17:55:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 17:55:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:57,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:57,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:57,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:57,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:57,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:57,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:55:57,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:57,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:57,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 17:55:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:57,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:57,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:57,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:57,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:57,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:55:57,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:57,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:57,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:57,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:57,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:57,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:55:57,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 17:55:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:57,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:57,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:57,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:57,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:55:57,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:57,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 17:55:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:57,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:57,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:57,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:57,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:55:57,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:57,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:57,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 17:55:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:57,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:57,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:57,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:57,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:55:57,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:57,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:57,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:57,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:57,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 17:55:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:57,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:57,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:57,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:57,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:55:57,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:57,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 34 proven. 89 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 17:55:57,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371754789] [2020-10-14 17:55:57,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:57,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 17:55:57,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193613807] [2020-10-14 17:55:57,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 17:55:57,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:57,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 17:55:57,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-10-14 17:55:57,346 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 20 states. [2020-10-14 17:55:58,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:55:58,118 INFO L93 Difference]: Finished difference Result 123 states and 143 transitions. [2020-10-14 17:55:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 17:55:58,118 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 74 [2020-10-14 17:55:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:55:58,119 INFO L225 Difference]: With dead ends: 123 [2020-10-14 17:55:58,120 INFO L226 Difference]: Without dead ends: 92 [2020-10-14 17:55:58,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 17:55:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-14 17:55:58,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 82. [2020-10-14 17:55:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-14 17:55:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2020-10-14 17:55:58,137 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 74 [2020-10-14 17:55:58,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:55:58,138 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2020-10-14 17:55:58,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 17:55:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2020-10-14 17:55:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 17:55:58,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:55:58,139 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:55:58,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 17:55:58,141 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:55:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:55:58,142 INFO L82 PathProgramCache]: Analyzing trace with hash -682766059, now seen corresponding path program 11 times [2020-10-14 17:55:58,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:55:58,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423465685] [2020-10-14 17:55:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:55:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:58,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:58,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:58,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 17:55:58,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:55:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-14 17:55:58,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:58,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 17:55:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:55:58,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 17:55:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:55:59,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:55:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:59,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:59,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:55:59,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:55:59,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:59,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:55:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:55:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:55:59,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:55:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:59,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:59,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:59,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:59,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 17:55:59,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:59,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:59,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 17:55:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:59,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:59,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:59,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:59,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:59,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:59,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:59,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:59,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:59,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:59,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:55:59,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 17:55:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:59,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:59,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:59,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:59,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:59,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:55:59,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:59,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:55:59,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 17:55:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:59,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:59,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:59,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:59,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:59,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:59,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:59,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:55:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 17:55:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:55:59,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:55:59,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:55:59,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:55:59,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:55:59,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:55:59,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:55:59,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:55:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:55:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:55:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:55:59,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:55:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 12 proven. 129 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-14 17:55:59,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423465685] [2020-10-14 17:55:59,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:55:59,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 17:55:59,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671055255] [2020-10-14 17:55:59,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 17:55:59,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:55:59,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 17:55:59,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-10-14 17:55:59,120 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 20 states. [2020-10-14 17:56:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:00,444 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2020-10-14 17:56:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 17:56:00,445 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 77 [2020-10-14 17:56:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:00,447 INFO L225 Difference]: With dead ends: 115 [2020-10-14 17:56:00,447 INFO L226 Difference]: Without dead ends: 113 [2020-10-14 17:56:00,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=1419, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 17:56:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-14 17:56:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2020-10-14 17:56:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 17:56:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2020-10-14 17:56:00,456 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 77 [2020-10-14 17:56:00,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:00,456 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2020-10-14 17:56:00,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 17:56:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2020-10-14 17:56:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 17:56:00,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:00,457 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:00,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 17:56:00,457 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:00,458 INFO L82 PathProgramCache]: Analyzing trace with hash -918560948, now seen corresponding path program 12 times [2020-10-14 17:56:00,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:00,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376772605] [2020-10-14 17:56:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:00,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:00,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:00,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 17:56:00,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-14 17:56:00,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:00,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 17:56:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 17:56:00,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:01,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:01,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:01,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:01,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:56:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:01,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:01,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 17:56:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:01,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:01,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:01,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:01,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 17:56:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:01,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:01,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:01,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 17:56:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:01,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:01,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:01,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 17:56:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:01,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:01,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:01,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 17:56:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:01,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:01,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:01,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:01,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 72 proven. 96 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 17:56:01,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376772605] [2020-10-14 17:56:01,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:01,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 17:56:01,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598540728] [2020-10-14 17:56:01,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 17:56:01,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:01,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 17:56:01,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-14 17:56:01,428 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand 22 states. [2020-10-14 17:56:02,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:02,319 INFO L93 Difference]: Finished difference Result 138 states and 160 transitions. [2020-10-14 17:56:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 17:56:02,319 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 85 [2020-10-14 17:56:02,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:02,320 INFO L225 Difference]: With dead ends: 138 [2020-10-14 17:56:02,320 INFO L226 Difference]: Without dead ends: 103 [2020-10-14 17:56:02,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=1227, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 17:56:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-14 17:56:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2020-10-14 17:56:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-14 17:56:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2020-10-14 17:56:02,335 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 85 [2020-10-14 17:56:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:02,335 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2020-10-14 17:56:02,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 17:56:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2020-10-14 17:56:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 17:56:02,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:02,336 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:02,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 17:56:02,337 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:02,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:02,337 INFO L82 PathProgramCache]: Analyzing trace with hash -346084456, now seen corresponding path program 13 times [2020-10-14 17:56:02,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:02,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679129522] [2020-10-14 17:56:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:02,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 17:56:03,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-14 17:56:03,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 17:56:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:03,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 17:56:03,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:03,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:03,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:03,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 17:56:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:03,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:03,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:03,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 17:56:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:03,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:03,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:03,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:03,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 17:56:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:03,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:03,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 17:56:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:03,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 17:56:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:03,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:03,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 17:56:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:03,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:03,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:03,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:03,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:03,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:03,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:03,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 14 proven. 175 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-14 17:56:03,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679129522] [2020-10-14 17:56:03,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:03,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 17:56:03,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761737612] [2020-10-14 17:56:03,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 17:56:03,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:03,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 17:56:03,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-14 17:56:03,574 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 22 states. [2020-10-14 17:56:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:05,017 INFO L93 Difference]: Finished difference Result 130 states and 148 transitions. [2020-10-14 17:56:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 17:56:05,018 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2020-10-14 17:56:05,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:05,019 INFO L225 Difference]: With dead ends: 130 [2020-10-14 17:56:05,020 INFO L226 Difference]: Without dead ends: 128 [2020-10-14 17:56:05,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=1820, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 17:56:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-14 17:56:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 101. [2020-10-14 17:56:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-14 17:56:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-10-14 17:56:05,036 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 88 [2020-10-14 17:56:05,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:05,036 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-10-14 17:56:05,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 17:56:05,036 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-10-14 17:56:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 17:56:05,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:05,039 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:05,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 17:56:05,040 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:05,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:05,040 INFO L82 PathProgramCache]: Analyzing trace with hash 710674127, now seen corresponding path program 14 times [2020-10-14 17:56:05,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:05,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117260463] [2020-10-14 17:56:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:05,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:05,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 17:56:05,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:05,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-10-14 17:56:05,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:05,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 17:56:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 17:56:05,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:06,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:06,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:06,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:06,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:06,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 17:56:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:06,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 17:56:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:06,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 17:56:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:06,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 17:56:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:06,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:06,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 17:56:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:06,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 17:56:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:06,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 17:56:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:06,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:06,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:06,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:06,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:06,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:06,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 98 proven. 122 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 17:56:06,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117260463] [2020-10-14 17:56:06,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:06,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 17:56:06,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035889786] [2020-10-14 17:56:06,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 17:56:06,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:06,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 17:56:06,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2020-10-14 17:56:06,110 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 24 states. [2020-10-14 17:56:07,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:07,200 INFO L93 Difference]: Finished difference Result 153 states and 177 transitions. [2020-10-14 17:56:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 17:56:07,201 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 96 [2020-10-14 17:56:07,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:07,203 INFO L225 Difference]: With dead ends: 153 [2020-10-14 17:56:07,203 INFO L226 Difference]: Without dead ends: 114 [2020-10-14 17:56:07,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=311, Invalid=1495, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 17:56:07,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-14 17:56:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2020-10-14 17:56:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-14 17:56:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2020-10-14 17:56:07,215 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 96 [2020-10-14 17:56:07,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:07,215 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2020-10-14 17:56:07,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 17:56:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2020-10-14 17:56:07,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 17:56:07,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:07,217 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:07,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 17:56:07,217 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:07,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:07,218 INFO L82 PathProgramCache]: Analyzing trace with hash -726510845, now seen corresponding path program 15 times [2020-10-14 17:56:07,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:07,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321363370] [2020-10-14 17:56:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:07,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:07,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:07,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 17:56:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-10-14 17:56:07,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:07,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 17:56:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 17:56:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:08,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:08,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:08,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 17:56:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 17:56:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 17:56:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 17:56:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 17:56:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 17:56:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 17:56:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:08,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:08,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:08,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:08,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:08,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 16 proven. 228 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 17:56:08,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321363370] [2020-10-14 17:56:08,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:08,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 17:56:08,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000951881] [2020-10-14 17:56:08,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 17:56:08,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:08,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 17:56:08,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2020-10-14 17:56:08,388 INFO L87 Difference]: Start difference. First operand 104 states and 117 transitions. Second operand 24 states. [2020-10-14 17:56:10,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:10,257 INFO L93 Difference]: Finished difference Result 145 states and 165 transitions. [2020-10-14 17:56:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-14 17:56:10,258 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 99 [2020-10-14 17:56:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:10,260 INFO L225 Difference]: With dead ends: 145 [2020-10-14 17:56:10,261 INFO L226 Difference]: Without dead ends: 143 [2020-10-14 17:56:10,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=177, Invalid=2273, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 17:56:10,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-14 17:56:10,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 112. [2020-10-14 17:56:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-14 17:56:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2020-10-14 17:56:10,271 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 99 [2020-10-14 17:56:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:10,271 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2020-10-14 17:56:10,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 17:56:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2020-10-14 17:56:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 17:56:10,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:10,273 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:10,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 17:56:10,273 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:10,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1983025978, now seen corresponding path program 16 times [2020-10-14 17:56:10,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:10,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242747572] [2020-10-14 17:56:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:10,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:10,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:10,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:10,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 17:56:10,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:10,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-10-14 17:56:10,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:10,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:10,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 17:56:10,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:10,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 17:56:10,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:11,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:11,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:11,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:11,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 17:56:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:11,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:11,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 17:56:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:56:11,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 17:56:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:11,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 17:56:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:11,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:11,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 17:56:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:11,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 17:56:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:11,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 17:56:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:11,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 17:56:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:11,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:11,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:11,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:11,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:11,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:11,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:11,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 128 proven. 151 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 17:56:11,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242747572] [2020-10-14 17:56:11,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:11,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 17:56:11,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663343153] [2020-10-14 17:56:11,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 17:56:11,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:11,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 17:56:11,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2020-10-14 17:56:11,508 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand 26 states. [2020-10-14 17:56:12,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:12,738 INFO L93 Difference]: Finished difference Result 168 states and 194 transitions. [2020-10-14 17:56:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 17:56:12,739 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 107 [2020-10-14 17:56:12,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:12,741 INFO L225 Difference]: With dead ends: 168 [2020-10-14 17:56:12,741 INFO L226 Difference]: Without dead ends: 125 [2020-10-14 17:56:12,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=373, Invalid=1789, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 17:56:12,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-14 17:56:12,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2020-10-14 17:56:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-14 17:56:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2020-10-14 17:56:12,753 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 107 [2020-10-14 17:56:12,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:12,754 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2020-10-14 17:56:12,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 17:56:12,754 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2020-10-14 17:56:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 17:56:12,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:12,755 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:12,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 17:56:12,756 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:12,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:12,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1732927110, now seen corresponding path program 17 times [2020-10-14 17:56:12,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:12,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804461170] [2020-10-14 17:56:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:12,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:12,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:13,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:13,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 17:56:13,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-10-14 17:56:13,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:13,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 17:56:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 17:56:13,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:14,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:14,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 17:56:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 17:56:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 17:56:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 17:56:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 17:56:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 17:56:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 17:56:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:14,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 17:56:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:14,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:14,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:14,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:14,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:14,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:14,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:14,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:14,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:14,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:14,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 18 proven. 288 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 17:56:14,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804461170] [2020-10-14 17:56:14,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:14,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 17:56:14,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140450346] [2020-10-14 17:56:14,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 17:56:14,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:14,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 17:56:14,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=600, Unknown=0, NotChecked=0, Total=650 [2020-10-14 17:56:14,148 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand 26 states. [2020-10-14 17:56:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:16,716 INFO L93 Difference]: Finished difference Result 160 states and 182 transitions. [2020-10-14 17:56:16,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 17:56:16,717 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 110 [2020-10-14 17:56:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:16,719 INFO L225 Difference]: With dead ends: 160 [2020-10-14 17:56:16,719 INFO L226 Difference]: Without dead ends: 158 [2020-10-14 17:56:16,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=201, Invalid=2879, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 17:56:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-14 17:56:16,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 123. [2020-10-14 17:56:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-14 17:56:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2020-10-14 17:56:16,730 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 110 [2020-10-14 17:56:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:16,731 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2020-10-14 17:56:16,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 17:56:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2020-10-14 17:56:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 17:56:16,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:16,732 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:16,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 17:56:16,733 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:16,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1064014915, now seen corresponding path program 18 times [2020-10-14 17:56:16,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:16,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66280273] [2020-10-14 17:56:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:16,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:17,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:17,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 17:56:17,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:17,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-14 17:56:17,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:17,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 17:56:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 17:56:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:18,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:18,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 17:56:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 17:56:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 17:56:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 17:56:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:18,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 17:56:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:18,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 17:56:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:18,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 17:56:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:56:18,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 17:56:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:18,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 17:56:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:18,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:18,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:18,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:18,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:18,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 162 proven. 183 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 17:56:18,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66280273] [2020-10-14 17:56:18,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:18,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 17:56:18,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976347346] [2020-10-14 17:56:18,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 17:56:18,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:18,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 17:56:18,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2020-10-14 17:56:18,174 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand 28 states. [2020-10-14 17:56:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:19,672 INFO L93 Difference]: Finished difference Result 183 states and 211 transitions. [2020-10-14 17:56:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-14 17:56:19,673 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 118 [2020-10-14 17:56:19,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:19,674 INFO L225 Difference]: With dead ends: 183 [2020-10-14 17:56:19,674 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 17:56:19,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=441, Invalid=2109, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 17:56:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 17:56:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2020-10-14 17:56:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-14 17:56:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 141 transitions. [2020-10-14 17:56:19,694 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 141 transitions. Word has length 118 [2020-10-14 17:56:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:19,694 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 141 transitions. [2020-10-14 17:56:19,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 17:56:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 141 transitions. [2020-10-14 17:56:19,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 17:56:19,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:19,695 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:19,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 17:56:19,696 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:19,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:19,696 INFO L82 PathProgramCache]: Analyzing trace with hash 838654193, now seen corresponding path program 19 times [2020-10-14 17:56:19,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:19,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038681823] [2020-10-14 17:56:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:19,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:20,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 17:56:20,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-14 17:56:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:20,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 17:56:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 17:56:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:20,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:20,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:20,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:20,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:20,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:20,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:20,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:20,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:20,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 17:56:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:20,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:20,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:20,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:20,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:20,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:20,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:20,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 17:56:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:20,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:20,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:20,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:20,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:20,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:20,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:20,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:20,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:20,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 17:56:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:20,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:20,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:20,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:20,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:20,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:20,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:20,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:20,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:20,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:20,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:20,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:21,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 17:56:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:21,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:21,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:21,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:21,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:21,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:21,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 17:56:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:21,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:21,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:21,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:21,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:21,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:21,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:21,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:21,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:21,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 17:56:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:21,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:21,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:21,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:21,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:21,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:21,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:21,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:21,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 17:56:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:21,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:21,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:21,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:21,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:21,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:21,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:21,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:21,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:21,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 17:56:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:21,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:21,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:21,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:21,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:21,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 17:56:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:21,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:21,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:21,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:21,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:21,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:21,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:21,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 20 proven. 355 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-10-14 17:56:21,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038681823] [2020-10-14 17:56:21,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:21,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 17:56:21,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328707304] [2020-10-14 17:56:21,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 17:56:21,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:21,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 17:56:21,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2020-10-14 17:56:21,073 INFO L87 Difference]: Start difference. First operand 126 states and 141 transitions. Second operand 28 states. [2020-10-14 17:56:23,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:23,810 INFO L93 Difference]: Finished difference Result 175 states and 199 transitions. [2020-10-14 17:56:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 17:56:23,811 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 121 [2020-10-14 17:56:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:23,813 INFO L225 Difference]: With dead ends: 175 [2020-10-14 17:56:23,813 INFO L226 Difference]: Without dead ends: 173 [2020-10-14 17:56:23,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=217, Invalid=3323, Unknown=0, NotChecked=0, Total=3540 [2020-10-14 17:56:23,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-14 17:56:23,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 134. [2020-10-14 17:56:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-14 17:56:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2020-10-14 17:56:23,824 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 121 [2020-10-14 17:56:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:23,825 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2020-10-14 17:56:23,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 17:56:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2020-10-14 17:56:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 17:56:23,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:23,826 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:23,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 17:56:23,827 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:23,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1321683752, now seen corresponding path program 20 times [2020-10-14 17:56:23,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:23,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405676493] [2020-10-14 17:56:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:24,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:24,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 17:56:24,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-10-14 17:56:24,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:24,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 17:56:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 17:56:24,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:25,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:25,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:25,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:56:25,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 17:56:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 17:56:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 17:56:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 17:56:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:25,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 17:56:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 17:56:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 17:56:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 17:56:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 17:56:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 17:56:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:25,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:25,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:25,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:25,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:25,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:25,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:25,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:25,598 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 21 proven. 397 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 17:56:25,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405676493] [2020-10-14 17:56:25,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:25,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-14 17:56:25,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030038809] [2020-10-14 17:56:25,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-14 17:56:25,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:25,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-14 17:56:25,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=812, Unknown=0, NotChecked=0, Total=870 [2020-10-14 17:56:25,601 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand 30 states. [2020-10-14 17:56:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:29,411 INFO L93 Difference]: Finished difference Result 192 states and 218 transitions. [2020-10-14 17:56:29,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-14 17:56:29,416 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 129 [2020-10-14 17:56:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:29,417 INFO L225 Difference]: With dead ends: 192 [2020-10-14 17:56:29,417 INFO L226 Difference]: Without dead ends: 190 [2020-10-14 17:56:29,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=234, Invalid=3926, Unknown=0, NotChecked=0, Total=4160 [2020-10-14 17:56:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-14 17:56:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 142. [2020-10-14 17:56:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 17:56:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 157 transitions. [2020-10-14 17:56:29,431 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 157 transitions. Word has length 129 [2020-10-14 17:56:29,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:29,431 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 157 transitions. [2020-10-14 17:56:29,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-14 17:56:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 157 transitions. [2020-10-14 17:56:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-14 17:56:29,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:29,433 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:29,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 17:56:29,433 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:29,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:29,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1437832799, now seen corresponding path program 21 times [2020-10-14 17:56:29,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:29,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813349933] [2020-10-14 17:56:29,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:29,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 17:56:30,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:30,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-10-14 17:56:30,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 17:56:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 17:56:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:30,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:30,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 17:56:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 17:56:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 17:56:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 17:56:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 17:56:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:30,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 17:56:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 17:56:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:30,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 17:56:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 17:56:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 17:56:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-14 17:56:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:30,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:30,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:30,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:30,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:30,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:30,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:30,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:30,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 264 proven. 198 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 17:56:30,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813349933] [2020-10-14 17:56:30,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:30,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 17:56:30,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635393729] [2020-10-14 17:56:30,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 17:56:30,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:30,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 17:56:30,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 17:56:30,755 INFO L87 Difference]: Start difference. First operand 142 states and 157 transitions. Second operand 27 states. [2020-10-14 17:56:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:31,484 INFO L93 Difference]: Finished difference Result 211 states and 242 transitions. [2020-10-14 17:56:31,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 17:56:31,485 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 137 [2020-10-14 17:56:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:31,487 INFO L225 Difference]: With dead ends: 211 [2020-10-14 17:56:31,488 INFO L226 Difference]: Without dead ends: 155 [2020-10-14 17:56:31,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=363, Invalid=1119, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 17:56:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-14 17:56:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2020-10-14 17:56:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-14 17:56:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2020-10-14 17:56:31,502 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 137 [2020-10-14 17:56:31,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:31,503 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2020-10-14 17:56:31,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 17:56:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2020-10-14 17:56:31,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-14 17:56:31,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:31,505 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:31,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 17:56:31,505 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:31,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:31,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1349620907, now seen corresponding path program 22 times [2020-10-14 17:56:31,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:31,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656225122] [2020-10-14 17:56:31,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:31,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:31,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:32,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:32,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 17:56:32,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 954 [2020-10-14 17:56:32,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:32,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 17:56:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 17:56:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:33,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:33,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:33,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 17:56:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:33,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 17:56:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:33,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 17:56:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 17:56:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 17:56:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:33,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 17:56:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:33,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 17:56:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:33,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 17:56:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 17:56:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:33,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 17:56:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 17:56:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:33,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:33,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:33,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:33,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:33,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:33,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:33,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 242 proven. 256 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 17:56:33,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656225122] [2020-10-14 17:56:33,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:33,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 17:56:33,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893559689] [2020-10-14 17:56:33,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-14 17:56:33,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:33,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-14 17:56:33,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2020-10-14 17:56:33,280 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand 32 states. [2020-10-14 17:56:35,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:35,126 INFO L93 Difference]: Finished difference Result 213 states and 245 transitions. [2020-10-14 17:56:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 17:56:35,127 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 140 [2020-10-14 17:56:35,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:35,130 INFO L225 Difference]: With dead ends: 213 [2020-10-14 17:56:35,130 INFO L226 Difference]: Without dead ends: 158 [2020-10-14 17:56:35,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=595, Invalid=2827, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 17:56:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-14 17:56:35,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 148. [2020-10-14 17:56:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-14 17:56:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 165 transitions. [2020-10-14 17:56:35,144 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 165 transitions. Word has length 140 [2020-10-14 17:56:35,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:35,144 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 165 transitions. [2020-10-14 17:56:35,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-14 17:56:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 165 transitions. [2020-10-14 17:56:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-14 17:56:35,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:35,145 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:35,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 17:56:35,146 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:35,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:35,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1949131487, now seen corresponding path program 23 times [2020-10-14 17:56:35,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:35,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838232663] [2020-10-14 17:56:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:35,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 17:56:36,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 17:56:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:36,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:36,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:36,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 17:56:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 17:56:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:36,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:36,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 17:56:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:36,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 17:56:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 17:56:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:36,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 17:56:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:56:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 17:56:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:36,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 17:56:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:36,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 17:56:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:36,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 17:56:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:36,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:36,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-14 17:56:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:36,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:36,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:36,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:36,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:36,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:36,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:36,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:36,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 24 proven. 510 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-10-14 17:56:36,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838232663] [2020-10-14 17:56:36,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:36,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 17:56:36,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845524958] [2020-10-14 17:56:36,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-14 17:56:36,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:36,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-14 17:56:36,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=930, Unknown=0, NotChecked=0, Total=992 [2020-10-14 17:56:36,979 INFO L87 Difference]: Start difference. First operand 148 states and 165 transitions. Second operand 32 states. [2020-10-14 17:56:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:40,847 INFO L93 Difference]: Finished difference Result 205 states and 233 transitions. [2020-10-14 17:56:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-14 17:56:40,848 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 143 [2020-10-14 17:56:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:40,850 INFO L225 Difference]: With dead ends: 205 [2020-10-14 17:56:40,851 INFO L226 Difference]: Without dead ends: 203 [2020-10-14 17:56:40,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=253, Invalid=4577, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 17:56:40,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-14 17:56:40,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 156. [2020-10-14 17:56:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-14 17:56:40,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 173 transitions. [2020-10-14 17:56:40,866 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 173 transitions. Word has length 143 [2020-10-14 17:56:40,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:40,867 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 173 transitions. [2020-10-14 17:56:40,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-14 17:56:40,867 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 173 transitions. [2020-10-14 17:56:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 17:56:40,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:40,868 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:40,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 17:56:40,868 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:40,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:40,869 INFO L82 PathProgramCache]: Analyzing trace with hash -671217898, now seen corresponding path program 24 times [2020-10-14 17:56:40,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:40,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366924888] [2020-10-14 17:56:40,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:40,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:40,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:41,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:41,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 17:56:41,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:41,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-14 17:56:41,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:41,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 17:56:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 17:56:41,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:42,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:42,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 17:56:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:42,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 17:56:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 17:56:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:42,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 17:56:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 17:56:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:42,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 17:56:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 17:56:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:42,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 17:56:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 17:56:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 17:56:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:42,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-14 17:56:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 17:56:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:42,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:42,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:42,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:42,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:42,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:42,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:42,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:42,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:42,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 244 proven. 341 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 17:56:42,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366924888] [2020-10-14 17:56:42,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:42,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-14 17:56:42,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216124208] [2020-10-14 17:56:42,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-14 17:56:42,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:42,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-14 17:56:42,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2020-10-14 17:56:42,754 INFO L87 Difference]: Start difference. First operand 156 states and 173 transitions. Second operand 34 states. [2020-10-14 17:56:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:45,148 INFO L93 Difference]: Finished difference Result 228 states and 262 transitions. [2020-10-14 17:56:45,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 17:56:45,149 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 151 [2020-10-14 17:56:45,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:45,152 INFO L225 Difference]: With dead ends: 228 [2020-10-14 17:56:45,152 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 17:56:45,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=641, Invalid=3141, Unknown=0, NotChecked=0, Total=3782 [2020-10-14 17:56:45,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 17:56:45,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 159. [2020-10-14 17:56:45,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-14 17:56:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 177 transitions. [2020-10-14 17:56:45,164 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 177 transitions. Word has length 151 [2020-10-14 17:56:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:45,165 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 177 transitions. [2020-10-14 17:56:45,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-14 17:56:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 177 transitions. [2020-10-14 17:56:45,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 17:56:45,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:45,166 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:45,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 17:56:45,166 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:45,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:45,166 INFO L82 PathProgramCache]: Analyzing trace with hash 613093474, now seen corresponding path program 25 times [2020-10-14 17:56:45,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:45,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858102472] [2020-10-14 17:56:45,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:45,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:46,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:46,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 17:56:46,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:46,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-10-14 17:56:46,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:46,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 17:56:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 17:56:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:47,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:47,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:47,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:47,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:47,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 17:56:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 17:56:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 17:56:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:47,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 17:56:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 17:56:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:47,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 17:56:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:47,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 17:56:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 17:56:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 17:56:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 17:56:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 17:56:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 17:56:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:47,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:47,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:47,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:47,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 26 proven. 598 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-14 17:56:47,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858102472] [2020-10-14 17:56:47,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:47,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-14 17:56:47,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179020994] [2020-10-14 17:56:47,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-14 17:56:47,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:47,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-14 17:56:47,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=1054, Unknown=0, NotChecked=0, Total=1122 [2020-10-14 17:56:47,382 INFO L87 Difference]: Start difference. First operand 159 states and 177 transitions. Second operand 34 states. [2020-10-14 17:56:52,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:52,351 INFO L93 Difference]: Finished difference Result 220 states and 250 transitions. [2020-10-14 17:56:52,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 17:56:52,352 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 154 [2020-10-14 17:56:52,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:52,354 INFO L225 Difference]: With dead ends: 220 [2020-10-14 17:56:52,354 INFO L226 Difference]: Without dead ends: 218 [2020-10-14 17:56:52,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=274, Invalid=5276, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 17:56:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-14 17:56:52,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 167. [2020-10-14 17:56:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-14 17:56:52,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 185 transitions. [2020-10-14 17:56:52,370 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 185 transitions. Word has length 154 [2020-10-14 17:56:52,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:52,370 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 185 transitions. [2020-10-14 17:56:52,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-14 17:56:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 185 transitions. [2020-10-14 17:56:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 17:56:52,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:52,372 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:52,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 17:56:52,372 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:52,373 INFO L82 PathProgramCache]: Analyzing trace with hash -110919271, now seen corresponding path program 26 times [2020-10-14 17:56:52,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:52,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192583214] [2020-10-14 17:56:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:52,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:53,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:53,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 17:56:53,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:53,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-10-14 17:56:53,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:53,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:53,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 17:56:53,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:53,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-10-14 17:56:53,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:54,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:54,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:54,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 17:56:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 17:56:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 17:56:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:54,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:54,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 17:56:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:56:54,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 17:56:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 17:56:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 17:56:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:56:54,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:54,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 17:56:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 17:56:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:54,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 17:56:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 17:56:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 17:56:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:56:54,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 17:56:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:54,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:54,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:54,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:54,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:56:54,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:54,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 338 proven. 341 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 17:56:54,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192583214] [2020-10-14 17:56:54,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:54,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-14 17:56:54,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928644266] [2020-10-14 17:56:54,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-14 17:56:54,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:54,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-14 17:56:54,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1006, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 17:56:54,648 INFO L87 Difference]: Start difference. First operand 167 states and 185 transitions. Second operand 36 states. [2020-10-14 17:56:57,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:56:57,259 INFO L93 Difference]: Finished difference Result 243 states and 279 transitions. [2020-10-14 17:56:57,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-14 17:56:57,262 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 162 [2020-10-14 17:56:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:56:57,264 INFO L225 Difference]: With dead ends: 243 [2020-10-14 17:56:57,264 INFO L226 Difference]: Without dead ends: 180 [2020-10-14 17:56:57,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=773, Invalid=3649, Unknown=0, NotChecked=0, Total=4422 [2020-10-14 17:56:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-14 17:56:57,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 170. [2020-10-14 17:56:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-14 17:56:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 189 transitions. [2020-10-14 17:56:57,287 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 189 transitions. Word has length 162 [2020-10-14 17:56:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:56:57,287 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 189 transitions. [2020-10-14 17:56:57,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-14 17:56:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 189 transitions. [2020-10-14 17:56:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-14 17:56:57,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:56:57,289 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:56:57,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 17:56:57,289 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:56:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:56:57,289 INFO L82 PathProgramCache]: Analyzing trace with hash -901517107, now seen corresponding path program 27 times [2020-10-14 17:56:57,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:56:57,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119165192] [2020-10-14 17:56:57,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:56:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:57,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:58,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:58,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 17:56:58,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 17:56:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:56:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:56:59,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:56:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:56:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 17:56:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 17:56:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 17:56:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 17:56:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 17:56:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 17:56:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 17:56:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 17:56:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 17:56:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:56:59,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-14 17:56:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 17:56:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 17:56:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:56:59,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 17:56:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:56:59,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:56:59,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:56:59,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:56:59,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:56:59,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:56:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:56:59,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:56:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:56:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:56:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:56:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:56:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 28 proven. 693 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-10-14 17:56:59,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119165192] [2020-10-14 17:56:59,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:56:59,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-14 17:56:59,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94066714] [2020-10-14 17:56:59,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-14 17:56:59,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:56:59,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-14 17:56:59,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=1190, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 17:56:59,306 INFO L87 Difference]: Start difference. First operand 170 states and 189 transitions. Second operand 36 states. [2020-10-14 17:57:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:04,310 INFO L93 Difference]: Finished difference Result 235 states and 267 transitions. [2020-10-14 17:57:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-14 17:57:04,311 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 165 [2020-10-14 17:57:04,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:04,313 INFO L225 Difference]: With dead ends: 235 [2020-10-14 17:57:04,313 INFO L226 Difference]: Without dead ends: 233 [2020-10-14 17:57:04,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=296, Invalid=6184, Unknown=0, NotChecked=0, Total=6480 [2020-10-14 17:57:04,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-14 17:57:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 178. [2020-10-14 17:57:04,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-14 17:57:04,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 197 transitions. [2020-10-14 17:57:04,330 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 197 transitions. Word has length 165 [2020-10-14 17:57:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:04,330 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 197 transitions. [2020-10-14 17:57:04,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-14 17:57:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 197 transitions. [2020-10-14 17:57:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-14 17:57:04,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:04,332 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:04,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 17:57:04,332 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:04,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1087817476, now seen corresponding path program 28 times [2020-10-14 17:57:04,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:04,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879192646] [2020-10-14 17:57:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:04,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:04,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:05,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:05,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-14 17:57:05,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-14 17:57:05,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:05,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 17:57:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-10-14 17:57:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:06,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 17:57:06,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 17:57:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 17:57:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 17:57:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 17:57:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 17:57:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 17:57:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 17:57:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 17:57:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 17:57:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-14 17:57:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 17:57:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:06,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 17:57:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 17:57:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 17:57:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:06,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 392 proven. 388 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-14 17:57:06,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879192646] [2020-10-14 17:57:06,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:06,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-14 17:57:06,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642333457] [2020-10-14 17:57:06,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-14 17:57:06,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:06,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-14 17:57:06,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1120, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 17:57:06,672 INFO L87 Difference]: Start difference. First operand 178 states and 197 transitions. Second operand 38 states. [2020-10-14 17:57:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:09,450 INFO L93 Difference]: Finished difference Result 258 states and 296 transitions. [2020-10-14 17:57:09,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 17:57:09,450 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 173 [2020-10-14 17:57:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:09,452 INFO L225 Difference]: With dead ends: 258 [2020-10-14 17:57:09,453 INFO L226 Difference]: Without dead ends: 191 [2020-10-14 17:57:09,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=871, Invalid=4099, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 17:57:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-14 17:57:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 181. [2020-10-14 17:57:09,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-14 17:57:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 201 transitions. [2020-10-14 17:57:09,470 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 201 transitions. Word has length 173 [2020-10-14 17:57:09,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:09,470 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 201 transitions. [2020-10-14 17:57:09,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-14 17:57:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 201 transitions. [2020-10-14 17:57:09,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-14 17:57:09,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:09,472 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:09,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 17:57:09,472 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:09,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:09,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1161785520, now seen corresponding path program 29 times [2020-10-14 17:57:09,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:09,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844852289] [2020-10-14 17:57:09,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:09,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:10,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:10,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-14 17:57:10,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 17:57:10,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:11,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 17:57:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:11,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 17:57:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 17:57:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 17:57:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 17:57:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 17:57:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 17:57:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 17:57:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 17:57:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 17:57:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 17:57:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 17:57:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 17:57:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:11,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-14 17:57:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:11,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:11,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:11,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:11,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:11,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:11,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:11,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:11,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 30 proven. 795 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-10-14 17:57:12,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844852289] [2020-10-14 17:57:12,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:12,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-14 17:57:12,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414026347] [2020-10-14 17:57:12,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-14 17:57:12,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:12,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-14 17:57:12,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1330, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 17:57:12,023 INFO L87 Difference]: Start difference. First operand 181 states and 201 transitions. Second operand 38 states. [2020-10-14 17:57:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:18,519 INFO L93 Difference]: Finished difference Result 250 states and 284 transitions. [2020-10-14 17:57:18,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-14 17:57:18,520 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 176 [2020-10-14 17:57:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:18,522 INFO L225 Difference]: With dead ends: 250 [2020-10-14 17:57:18,522 INFO L226 Difference]: Without dead ends: 248 [2020-10-14 17:57:18,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=312, Invalid=6828, Unknown=0, NotChecked=0, Total=7140 [2020-10-14 17:57:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-14 17:57:18,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 189. [2020-10-14 17:57:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-14 17:57:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 209 transitions. [2020-10-14 17:57:18,548 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 209 transitions. Word has length 176 [2020-10-14 17:57:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:18,548 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 209 transitions. [2020-10-14 17:57:18,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-14 17:57:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 209 transitions. [2020-10-14 17:57:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-14 17:57:18,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:18,553 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:18,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 17:57:18,556 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:18,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:18,557 INFO L82 PathProgramCache]: Analyzing trace with hash 282735239, now seen corresponding path program 30 times [2020-10-14 17:57:18,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:18,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489601224] [2020-10-14 17:57:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:18,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:19,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:19,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 17:57:19,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:19,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1200 [2020-10-14 17:57:19,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:19,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 17:57:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 17:57:19,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:21,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:21,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:21,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 17:57:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 17:57:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:21,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 17:57:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:21,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 17:57:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:21,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 17:57:21,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 17:57:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:21,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 17:57:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 17:57:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 17:57:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 17:57:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 17:57:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 17:57:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 17:57:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 17:57:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-14 17:57:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-14 17:57:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:21,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:21,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:21,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1308 backedges. 450 proven. 438 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-14 17:57:21,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489601224] [2020-10-14 17:57:21,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:21,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-14 17:57:21,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654856253] [2020-10-14 17:57:21,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-14 17:57:21,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:21,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-14 17:57:21,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=1240, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 17:57:21,251 INFO L87 Difference]: Start difference. First operand 189 states and 209 transitions. Second operand 40 states. [2020-10-14 17:57:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:24,226 INFO L93 Difference]: Finished difference Result 273 states and 313 transitions. [2020-10-14 17:57:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 17:57:24,227 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 184 [2020-10-14 17:57:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:24,229 INFO L225 Difference]: With dead ends: 273 [2020-10-14 17:57:24,229 INFO L226 Difference]: Without dead ends: 202 [2020-10-14 17:57:24,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1199 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=970, Invalid=4432, Unknown=0, NotChecked=0, Total=5402 [2020-10-14 17:57:24,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-14 17:57:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 192. [2020-10-14 17:57:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-14 17:57:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 213 transitions. [2020-10-14 17:57:24,247 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 213 transitions. Word has length 184 [2020-10-14 17:57:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:24,247 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 213 transitions. [2020-10-14 17:57:24,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-14 17:57:24,247 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 213 transitions. [2020-10-14 17:57:24,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 17:57:24,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:24,249 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:24,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 17:57:24,249 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:24,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:24,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1925152069, now seen corresponding path program 31 times [2020-10-14 17:57:24,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:24,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193315625] [2020-10-14 17:57:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:24,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:24,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:25,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1352 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-14 17:57:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:26,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:26,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 17:57:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 17:57:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 17:57:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 17:57:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 17:57:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 17:57:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 17:57:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-14 17:57:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 17:57:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 17:57:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 17:57:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-14 17:57:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-14 17:57:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:26,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:26,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:26,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:26,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-14 17:57:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:26,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-14 17:57:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:27,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:27,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 32 proven. 904 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2020-10-14 17:57:27,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193315625] [2020-10-14 17:57:27,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:27,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-14 17:57:27,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64888314] [2020-10-14 17:57:27,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-14 17:57:27,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:27,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-14 17:57:27,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1482, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 17:57:27,056 INFO L87 Difference]: Start difference. First operand 192 states and 213 transitions. Second operand 40 states. [2020-10-14 17:57:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:33,890 INFO L93 Difference]: Finished difference Result 265 states and 301 transitions. [2020-10-14 17:57:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 17:57:33,891 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 187 [2020-10-14 17:57:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:33,892 INFO L225 Difference]: With dead ends: 265 [2020-10-14 17:57:33,892 INFO L226 Difference]: Without dead ends: 263 [2020-10-14 17:57:33,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=334, Invalid=7856, Unknown=0, NotChecked=0, Total=8190 [2020-10-14 17:57:33,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-10-14 17:57:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 200. [2020-10-14 17:57:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-14 17:57:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 221 transitions. [2020-10-14 17:57:33,909 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 221 transitions. Word has length 187 [2020-10-14 17:57:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:33,909 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 221 transitions. [2020-10-14 17:57:33,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-14 17:57:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 221 transitions. [2020-10-14 17:57:33,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 17:57:33,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:33,911 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:33,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 17:57:33,911 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:33,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:33,911 INFO L82 PathProgramCache]: Analyzing trace with hash -497972494, now seen corresponding path program 32 times [2020-10-14 17:57:33,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:33,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259808072] [2020-10-14 17:57:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:33,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:33,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1395 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-14 17:57:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 17:57:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 17:57:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 17:57:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:36,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 17:57:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 17:57:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 17:57:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 17:57:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-14 17:57:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 17:57:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 17:57:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:36,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 17:57:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-14 17:57:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-14 17:57:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-14 17:57:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:36,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-14 17:57:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-14 17:57:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:36,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:36,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 452 proven. 551 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-14 17:57:36,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259808072] [2020-10-14 17:57:36,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:36,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-14 17:57:36,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158639580] [2020-10-14 17:57:36,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-14 17:57:36,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:36,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-14 17:57:36,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 17:57:36,792 INFO L87 Difference]: Start difference. First operand 200 states and 221 transitions. Second operand 42 states. [2020-10-14 17:57:40,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:40,185 INFO L93 Difference]: Finished difference Result 288 states and 330 transitions. [2020-10-14 17:57:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-14 17:57:40,186 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 195 [2020-10-14 17:57:40,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:40,187 INFO L225 Difference]: With dead ends: 288 [2020-10-14 17:57:40,188 INFO L226 Difference]: Without dead ends: 213 [2020-10-14 17:57:40,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1308 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1028, Invalid=4824, Unknown=0, NotChecked=0, Total=5852 [2020-10-14 17:57:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-14 17:57:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 203. [2020-10-14 17:57:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-14 17:57:40,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 225 transitions. [2020-10-14 17:57:40,203 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 225 transitions. Word has length 195 [2020-10-14 17:57:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:40,203 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 225 transitions. [2020-10-14 17:57:40,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-14 17:57:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 225 transitions. [2020-10-14 17:57:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-14 17:57:40,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:40,205 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:40,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 17:57:40,205 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:40,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:40,205 INFO L82 PathProgramCache]: Analyzing trace with hash -571551170, now seen corresponding path program 33 times [2020-10-14 17:57:40,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:40,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772037948] [2020-10-14 17:57:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:41,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:41,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1561 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 17:57:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:43,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 17:57:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 17:57:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 17:57:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 17:57:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 17:57:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 17:57:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 17:57:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 17:57:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 17:57:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 17:57:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 17:57:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 17:57:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 17:57:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-14 17:57:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-14 17:57:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-14 17:57:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:43,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:43,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:43,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:43,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:43,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:43,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:43,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:43,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:43,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1537 backedges. 34 proven. 1020 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2020-10-14 17:57:43,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772037948] [2020-10-14 17:57:43,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:43,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-14 17:57:43,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211724769] [2020-10-14 17:57:43,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-14 17:57:43,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:43,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-14 17:57:43,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1638, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 17:57:43,720 INFO L87 Difference]: Start difference. First operand 203 states and 225 transitions. Second operand 42 states. [2020-10-14 17:57:52,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:52,682 INFO L93 Difference]: Finished difference Result 280 states and 318 transitions. [2020-10-14 17:57:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-10-14 17:57:52,684 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 198 [2020-10-14 17:57:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:52,686 INFO L225 Difference]: With dead ends: 280 [2020-10-14 17:57:52,686 INFO L226 Difference]: Without dead ends: 278 [2020-10-14 17:57:52,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1438 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=350, Invalid=8580, Unknown=0, NotChecked=0, Total=8930 [2020-10-14 17:57:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-14 17:57:52,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 211. [2020-10-14 17:57:52,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-14 17:57:52,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 233 transitions. [2020-10-14 17:57:52,707 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 233 transitions. Word has length 198 [2020-10-14 17:57:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:52,708 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 233 transitions. [2020-10-14 17:57:52,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-14 17:57:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 233 transitions. [2020-10-14 17:57:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-14 17:57:52,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:52,710 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:52,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 17:57:52,710 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:52,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:52,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1572493451, now seen corresponding path program 34 times [2020-10-14 17:57:52,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:52,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38717302] [2020-10-14 17:57:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:52,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:52,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1514 [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 17:57:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:57:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-14 17:57:54,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:57:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:57:55,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:57:55,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:57:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:57:55,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:57:55,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 17:57:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 17:57:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 17:57:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 17:57:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 17:57:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 17:57:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 17:57:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 17:57:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 17:57:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:57:55,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 17:57:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 17:57:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 17:57:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:55,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 17:57:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-14 17:57:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-14 17:57:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-14 17:57:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:57:55,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:55,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 17:57:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:55,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:55,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:57:55,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:57:55,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:57:55,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:57:55,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:57:55,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:57:55,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:57:55,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:57:55,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:57:55,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:57:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 514 proven. 611 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-14 17:57:56,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38717302] [2020-10-14 17:57:56,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:57:56,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-14 17:57:56,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73953624] [2020-10-14 17:57:56,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-14 17:57:56,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:57:56,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-14 17:57:56,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1513, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 17:57:56,074 INFO L87 Difference]: Start difference. First operand 211 states and 233 transitions. Second operand 44 states. [2020-10-14 17:57:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:57:59,778 INFO L93 Difference]: Finished difference Result 303 states and 347 transitions. [2020-10-14 17:57:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-10-14 17:57:59,779 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 206 [2020-10-14 17:57:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:57:59,781 INFO L225 Difference]: With dead ends: 303 [2020-10-14 17:57:59,781 INFO L226 Difference]: Without dead ends: 224 [2020-10-14 17:57:59,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1510 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1146, Invalid=5496, Unknown=0, NotChecked=0, Total=6642 [2020-10-14 17:57:59,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-14 17:57:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2020-10-14 17:57:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-14 17:57:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 237 transitions. [2020-10-14 17:57:59,795 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 237 transitions. Word has length 206 [2020-10-14 17:57:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:57:59,796 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 237 transitions. [2020-10-14 17:57:59,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-14 17:57:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 237 transitions. [2020-10-14 17:57:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-14 17:57:59,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:57:59,797 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:57:59,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 17:57:59,798 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:57:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:57:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1071441751, now seen corresponding path program 35 times [2020-10-14 17:57:59,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:57:59,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132972262] [2020-10-14 17:57:59,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:57:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:57:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:57:59,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:01,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1538 [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 17:58:01,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:58:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 239 [2020-10-14 17:58:01,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:58:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:58:03,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 17:58:03,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:58:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:58:03,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 17:58:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 17:58:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 17:58:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 17:58:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 17:58:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 17:58:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 17:58:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-14 17:58:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 17:58:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 17:58:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-14 17:58:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-14 17:58:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-14 17:58:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-14 17:58:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 17:58:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-14 17:58:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 17:58:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:03,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:03,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:03,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:03,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 36 proven. 1143 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2020-10-14 17:58:03,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132972262] [2020-10-14 17:58:03,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:58:03,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-14 17:58:03,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053098157] [2020-10-14 17:58:03,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-14 17:58:03,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:58:03,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-14 17:58:03,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1806, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 17:58:03,189 INFO L87 Difference]: Start difference. First operand 214 states and 237 transitions. Second operand 44 states. [2020-10-14 17:58:11,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:58:11,630 INFO L93 Difference]: Finished difference Result 295 states and 335 transitions. [2020-10-14 17:58:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-14 17:58:11,631 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 209 [2020-10-14 17:58:11,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:58:11,633 INFO L225 Difference]: With dead ends: 295 [2020-10-14 17:58:11,633 INFO L226 Difference]: Without dead ends: 293 [2020-10-14 17:58:11,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1618 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=372, Invalid=9728, Unknown=0, NotChecked=0, Total=10100 [2020-10-14 17:58:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-14 17:58:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 222. [2020-10-14 17:58:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-10-14 17:58:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 245 transitions. [2020-10-14 17:58:11,651 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 245 transitions. Word has length 209 [2020-10-14 17:58:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:58:11,651 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 245 transitions. [2020-10-14 17:58:11,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-14 17:58:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 245 transitions. [2020-10-14 17:58:11,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 17:58:11,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:58:11,652 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:58:11,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 17:58:11,652 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:58:11,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:58:11,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1083288864, now seen corresponding path program 36 times [2020-10-14 17:58:11,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:58:11,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831491589] [2020-10-14 17:58:11,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:58:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:11,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:11,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:13,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:13,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-14 17:58:13,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:58:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1683 [2020-10-14 17:58:13,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:13,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-14 17:58:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:58:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-14 17:58:13,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:58:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:58:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:58:15,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 17:58:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 17:58:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 17:58:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 17:58:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:58:15,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 17:58:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:58:15,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 17:58:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:58:15,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 17:58:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:58:15,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:58:15,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-14 17:58:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 17:58:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 17:58:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-14 17:58:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-14 17:58:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-14 17:58:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-14 17:58:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 17:58:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-14 17:58:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 17:58:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 17:58:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:15,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:15,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1866 backedges. 580 proven. 674 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-14 17:58:15,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831491589] [2020-10-14 17:58:15,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:58:15,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-14 17:58:15,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344192733] [2020-10-14 17:58:15,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-14 17:58:15,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:58:15,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-14 17:58:15,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1652, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 17:58:15,279 INFO L87 Difference]: Start difference. First operand 222 states and 245 transitions. Second operand 46 states. [2020-10-14 17:58:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:58:19,183 INFO L93 Difference]: Finished difference Result 318 states and 364 transitions. [2020-10-14 17:58:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 17:58:19,184 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 217 [2020-10-14 17:58:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:58:19,185 INFO L225 Difference]: With dead ends: 318 [2020-10-14 17:58:19,185 INFO L226 Difference]: Without dead ends: 235 [2020-10-14 17:58:19,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1614 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1260, Invalid=5880, Unknown=0, NotChecked=0, Total=7140 [2020-10-14 17:58:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-10-14 17:58:19,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 225. [2020-10-14 17:58:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-14 17:58:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 249 transitions. [2020-10-14 17:58:19,202 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 249 transitions. Word has length 217 [2020-10-14 17:58:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:58:19,203 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 249 transitions. [2020-10-14 17:58:19,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-14 17:58:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 249 transitions. [2020-10-14 17:58:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-14 17:58:19,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:58:19,204 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:58:19,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 17:58:19,205 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:58:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:58:19,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1065736492, now seen corresponding path program 37 times [2020-10-14 17:58:19,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:58:19,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573353238] [2020-10-14 17:58:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:58:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:19,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:19,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:20,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:58:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 17:58:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:58:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:58:22,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:58:22,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 17:58:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 17:58:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 17:58:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 17:58:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 17:58:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 17:58:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 17:58:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 17:58:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 17:58:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 17:58:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 17:58:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-14 17:58:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 17:58:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 17:58:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 17:58:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 17:58:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-14 17:58:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:22,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:22,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 17:58:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:22,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:22,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:22,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:22,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:22,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:22,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:22,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:23,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 38 proven. 1273 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-10-14 17:58:23,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573353238] [2020-10-14 17:58:23,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:58:23,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-14 17:58:23,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988351488] [2020-10-14 17:58:23,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-14 17:58:23,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:58:23,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-14 17:58:23,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1980, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 17:58:23,072 INFO L87 Difference]: Start difference. First operand 225 states and 249 transitions. Second operand 46 states. [2020-10-14 17:58:32,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:58:32,727 INFO L93 Difference]: Finished difference Result 310 states and 352 transitions. [2020-10-14 17:58:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-10-14 17:58:32,729 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 220 [2020-10-14 17:58:32,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:58:32,731 INFO L225 Difference]: With dead ends: 310 [2020-10-14 17:58:32,731 INFO L226 Difference]: Without dead ends: 308 [2020-10-14 17:58:32,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1734 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=386, Invalid=10534, Unknown=0, NotChecked=0, Total=10920 [2020-10-14 17:58:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-14 17:58:32,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 233. [2020-10-14 17:58:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-14 17:58:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 257 transitions. [2020-10-14 17:58:32,752 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 257 transitions. Word has length 220 [2020-10-14 17:58:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:58:32,753 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 257 transitions. [2020-10-14 17:58:32,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-14 17:58:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 257 transitions. [2020-10-14 17:58:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 17:58:32,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:58:32,755 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:58:32,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 17:58:32,755 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:58:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:58:32,755 INFO L82 PathProgramCache]: Analyzing trace with hash -283778973, now seen corresponding path program 38 times [2020-10-14 17:58:32,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:58:32,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426594836] [2020-10-14 17:58:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:58:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:32,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:32,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:34,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:34,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 17:58:34,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:58:34,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1592 [2020-10-14 17:58:34,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:34,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-14 17:58:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:58:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 262 [2020-10-14 17:58:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:58:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:58:36,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:36,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:58:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:58:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 17:58:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 17:58:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 17:58:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 17:58:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 17:58:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 17:58:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 17:58:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 17:58:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:58:36,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 17:58:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 17:58:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 17:58:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-14 17:58:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 17:58:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 17:58:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 17:58:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:58:36,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 17:58:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-14 17:58:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 17:58:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-14 17:58:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:36,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:36,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:58:36,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:36,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2074 backedges. 650 proven. 740 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-14 17:58:36,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426594836] [2020-10-14 17:58:36,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:58:36,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-14 17:58:36,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744240731] [2020-10-14 17:58:36,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-14 17:58:36,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:58:36,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-14 17:58:36,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=459, Invalid=1797, Unknown=0, NotChecked=0, Total=2256 [2020-10-14 17:58:36,578 INFO L87 Difference]: Start difference. First operand 233 states and 257 transitions. Second operand 48 states. [2020-10-14 17:58:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:58:41,374 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-10-14 17:58:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-14 17:58:41,375 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 228 [2020-10-14 17:58:41,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:58:41,377 INFO L225 Difference]: With dead ends: 333 [2020-10-14 17:58:41,377 INFO L226 Difference]: Without dead ends: 246 [2020-10-14 17:58:41,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1838 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1390, Invalid=6620, Unknown=0, NotChecked=0, Total=8010 [2020-10-14 17:58:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-14 17:58:41,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2020-10-14 17:58:41,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-14 17:58:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 261 transitions. [2020-10-14 17:58:41,402 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 261 transitions. Word has length 228 [2020-10-14 17:58:41,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:58:41,403 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 261 transitions. [2020-10-14 17:58:41,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-14 17:58:41,403 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 261 transitions. [2020-10-14 17:58:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-14 17:58:41,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:58:41,405 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:58:41,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 17:58:41,405 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:58:41,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:58:41,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1880378729, now seen corresponding path program 39 times [2020-10-14 17:58:41,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:58:41,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772229299] [2020-10-14 17:58:41,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:58:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:41,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:41,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:43,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:43,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 17:58:43,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1997 [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:58:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:58:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:58:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 17:58:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 17:58:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 17:58:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 17:58:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 17:58:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 17:58:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 17:58:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-14 17:58:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 17:58:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 17:58:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 17:58:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 17:58:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 17:58:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 17:58:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-14 17:58:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-14 17:58:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 17:58:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 17:58:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-14 17:58:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:45,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:45,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:45,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:58:45,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:58:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:58:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 40 proven. 1410 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2020-10-14 17:58:45,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772229299] [2020-10-14 17:58:45,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:58:45,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-14 17:58:45,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645663353] [2020-10-14 17:58:45,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-14 17:58:45,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:58:45,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-14 17:58:45,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2160, Unknown=0, NotChecked=0, Total=2256 [2020-10-14 17:58:45,824 INFO L87 Difference]: Start difference. First operand 236 states and 261 transitions. Second operand 48 states. [2020-10-14 17:58:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:58:56,779 INFO L93 Difference]: Finished difference Result 325 states and 369 transitions. [2020-10-14 17:58:56,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-14 17:58:56,781 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 231 [2020-10-14 17:58:56,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:58:56,784 INFO L225 Difference]: With dead ends: 325 [2020-10-14 17:58:56,784 INFO L226 Difference]: Without dead ends: 323 [2020-10-14 17:58:56,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1960 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=407, Invalid=11583, Unknown=0, NotChecked=0, Total=11990 [2020-10-14 17:58:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-14 17:58:56,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 244. [2020-10-14 17:58:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-14 17:58:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 269 transitions. [2020-10-14 17:58:56,810 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 269 transitions. Word has length 231 [2020-10-14 17:58:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:58:56,811 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 269 transitions. [2020-10-14 17:58:56,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-14 17:58:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 269 transitions. [2020-10-14 17:58:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-14 17:58:56,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:58:56,813 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:58:56,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 17:58:56,813 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:58:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:58:56,813 INFO L82 PathProgramCache]: Analyzing trace with hash 86843086, now seen corresponding path program 40 times [2020-10-14 17:58:56,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:58:56,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023833662] [2020-10-14 17:58:56,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:58:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:58:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:56,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:58:58,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:58:58,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 17:58:58,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:58:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1898 [2020-10-14 17:58:58,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:58:58,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:58:58,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-14 17:58:58,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:58:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 275 [2020-10-14 17:58:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:59:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:59:00,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:59:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 17:59:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 17:59:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 17:59:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 17:59:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 17:59:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 17:59:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 17:59:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-14 17:59:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 17:59:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 17:59:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 17:59:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:00,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:00,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:00,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:00,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:00,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 17:59:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:01,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 17:59:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:01,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 17:59:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-14 17:59:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-14 17:59:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:01,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 17:59:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 17:59:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:01,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-14 17:59:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 17:59:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:01,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:01,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2293 backedges. 800 proven. 733 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-14 17:59:01,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023833662] [2020-10-14 17:59:01,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:59:01,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-14 17:59:01,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953636616] [2020-10-14 17:59:01,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-14 17:59:01,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:59:01,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-14 17:59:01,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=1930, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 17:59:01,157 INFO L87 Difference]: Start difference. First operand 244 states and 269 transitions. Second operand 50 states. [2020-10-14 17:59:06,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:59:06,486 INFO L93 Difference]: Finished difference Result 348 states and 398 transitions. [2020-10-14 17:59:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 17:59:06,487 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 239 [2020-10-14 17:59:06,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:59:06,489 INFO L225 Difference]: With dead ends: 348 [2020-10-14 17:59:06,489 INFO L226 Difference]: Without dead ends: 257 [2020-10-14 17:59:06,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2057 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1585, Invalid=7345, Unknown=0, NotChecked=0, Total=8930 [2020-10-14 17:59:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-14 17:59:06,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 247. [2020-10-14 17:59:06,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-14 17:59:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 273 transitions. [2020-10-14 17:59:06,513 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 273 transitions. Word has length 239 [2020-10-14 17:59:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:59:06,513 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 273 transitions. [2020-10-14 17:59:06,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-14 17:59:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 273 transitions. [2020-10-14 17:59:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-14 17:59:06,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:59:06,515 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:59:06,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 17:59:06,516 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:59:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:59:06,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1190503450, now seen corresponding path program 41 times [2020-10-14 17:59:06,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:59:06,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139328785] [2020-10-14 17:59:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:59:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:06,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:08,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:08,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1958 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-14 17:59:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:10,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:59:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:10,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:10,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:10,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:59:10,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:59:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:59:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 17:59:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:59:11,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 17:59:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 17:59:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 17:59:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 17:59:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 17:59:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 17:59:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 17:59:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 17:59:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:11,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 17:59:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:11,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 17:59:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 17:59:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 17:59:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 17:59:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:59:11,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 17:59:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 17:59:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 17:59:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-14 17:59:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-14 17:59:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 17:59:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:11,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:11,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 42 proven. 1554 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2020-10-14 17:59:11,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139328785] [2020-10-14 17:59:11,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:59:11,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-14 17:59:11,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072936075] [2020-10-14 17:59:11,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-14 17:59:11,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:59:11,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-14 17:59:11,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=2352, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 17:59:11,185 INFO L87 Difference]: Start difference. First operand 247 states and 273 transitions. Second operand 50 states. [2020-10-14 17:59:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:59:23,940 INFO L93 Difference]: Finished difference Result 340 states and 386 transitions. [2020-10-14 17:59:23,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-10-14 17:59:23,942 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 242 [2020-10-14 17:59:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:59:23,944 INFO L225 Difference]: With dead ends: 340 [2020-10-14 17:59:23,944 INFO L226 Difference]: Without dead ends: 338 [2020-10-14 17:59:23,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2170 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=429, Invalid=12911, Unknown=0, NotChecked=0, Total=13340 [2020-10-14 17:59:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-14 17:59:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 255. [2020-10-14 17:59:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-14 17:59:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 281 transitions. [2020-10-14 17:59:23,971 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 281 transitions. Word has length 242 [2020-10-14 17:59:23,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:59:23,971 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 281 transitions. [2020-10-14 17:59:23,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-14 17:59:23,972 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 281 transitions. [2020-10-14 17:59:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-14 17:59:23,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:59:23,973 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:59:23,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 17:59:23,974 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:59:23,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:59:23,974 INFO L82 PathProgramCache]: Analyzing trace with hash -289743535, now seen corresponding path program 42 times [2020-10-14 17:59:23,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:59:23,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423272553] [2020-10-14 17:59:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:59:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:23,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:26,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:26,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-14 17:59:26,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:59:26,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2379 [2020-10-14 17:59:26,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:26,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-14 17:59:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 17:59:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 288 [2020-10-14 17:59:26,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:59:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:59:28,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:59:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:59:28,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 17:59:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:59:28,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 17:59:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:59:28,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:59:28,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 17:59:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:28,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 17:59:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 17:59:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:28,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 17:59:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 17:59:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 17:59:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 17:59:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 17:59:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 17:59:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 17:59:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 17:59:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 17:59:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 17:59:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 17:59:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 17:59:28,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 17:59:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-14 17:59:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-14 17:59:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 17:59:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:28,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-14 17:59:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:59:28,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:59:28,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:59:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:59:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 882 proven. 801 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-14 17:59:29,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423272553] [2020-10-14 17:59:29,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:59:29,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2020-10-14 17:59:29,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34237905] [2020-10-14 17:59:29,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-10-14 17:59:29,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:59:29,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-10-14 17:59:29,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=566, Invalid=2086, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 17:59:29,063 INFO L87 Difference]: Start difference. First operand 255 states and 281 transitions. Second operand 52 states.