/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:10:51,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:10:51,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:10:51,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:10:51,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:10:51,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:10:51,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:10:51,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:10:51,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:10:51,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:10:51,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:10:51,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:10:51,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:10:51,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:10:51,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:10:51,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:10:51,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:10:51,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:10:51,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:10:51,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:10:51,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:10:51,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:10:51,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:10:51,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:10:51,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:10:51,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:10:51,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:10:51,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:10:51,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:10:51,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:10:51,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:10:51,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:10:51,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:10:51,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:10:51,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:10:51,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:10:51,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:10:51,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:10:51,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:10:51,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:10:51,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:10:51,817 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 [2020-09-25 09:10:51,865 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:10:51,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:10:51,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:10:51,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:10:51,868 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:10:51,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:10:51,868 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:10:51,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:10:51,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:10:51,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:10:51,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:10:51,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:10:51,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:10:51,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:10:51,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:10:51,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:10:51,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:10:51,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:10:51,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:10:51,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:10:51,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:10:51,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:10:51,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:10:51,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:10:51,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:10:51,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:10:51,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:10:51,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:10:51,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:10:51,874 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 09:10:52,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:10:52,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:10:52,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:10:52,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:10:52,367 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:10:52,368 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 09:10:52,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2673a7dea/4625c23d14644c4f9f323d6af3e61034/FLAGeb3d4d08c [2020-09-25 09:10:53,058 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:10:53,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 09:10:53,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2673a7dea/4625c23d14644c4f9f323d6af3e61034/FLAGeb3d4d08c [2020-09-25 09:10:53,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2673a7dea/4625c23d14644c4f9f323d6af3e61034 [2020-09-25 09:10:53,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:10:53,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:10:53,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:10:53,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:10:53,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:10:53,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d58d449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53, skipping insertion in model container [2020-09-25 09:10:53,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:10:53,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:10:53,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:10:53,720 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:10:53,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:10:53,892 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:10:53,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53 WrapperNode [2020-09-25 09:10:53,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:10:53,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:10:53,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:10:53,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:10:53,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (1/1) ... [2020-09-25 09:10:53,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:10:53,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:10:53,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:10:53,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:10:53,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (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 [2020-09-25 09:10:54,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:10:54,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:10:54,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 09:10:54,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:10:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:10:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 09:10:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 09:10:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 09:10:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:10:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:10:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:10:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:10:54,657 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:10:54,657 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:10:54,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:10:54 BoogieIcfgContainer [2020-09-25 09:10:54,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:10:54,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:10:54,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:10:54,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:10:54,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:10:53" (1/3) ... [2020-09-25 09:10:54,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5258fac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:10:54, skipping insertion in model container [2020-09-25 09:10:54,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:10:53" (2/3) ... [2020-09-25 09:10:54,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5258fac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:10:54, skipping insertion in model container [2020-09-25 09:10:54,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:10:54" (3/3) ... [2020-09-25 09:10:54,677 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 09:10:54,690 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:10:54,705 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 09:10:54,731 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 09:10:54,768 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:10:54,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:10:54,769 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:10:54,769 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:10:54,769 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:10:54,769 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:10:54,770 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:10:54,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:10:54,805 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 09:10:54,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 09:10:54,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:10:54,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:10:54,819 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:10:54,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:10:54,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 09:10:54,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:10:54,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591899490] [2020-09-25 09:10:54,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:10:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:55,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:55,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:55,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 09:10:55,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 09:10:55,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:55,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:10:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:10:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:10:55,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:10:55,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:10:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:55,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:55,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:55,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:10:55,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:10:55,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:55,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:10:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:10:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:10:55,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:10:55,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:10:55,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591899490] [2020-09-25 09:10:55,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:10:55,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:10:55,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553652781] [2020-09-25 09:10:55,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:10:55,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:10:55,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:10:55,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:10:55,497 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 09:10:56,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:10:56,488 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 09:10:56,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 09:10:56,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 09:10:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:10:56,516 INFO L225 Difference]: With dead ends: 290 [2020-09-25 09:10:56,517 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 09:10:56,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:10:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 09:10:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 09:10:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 09:10:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 09:10:56,601 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 09:10:56,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:10:56,602 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 09:10:56,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:10:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 09:10:56,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 09:10:56,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:10:56,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:10:56,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:10:56,605 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:10:56,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:10:56,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 09:10:56,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:10:56,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634266554] [2020-09-25 09:10:56,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:10:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:56,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:56,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:56,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 09:10:56,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-25 09:10:56,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:56,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:10:56,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:10:56,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:10:56,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:10:57,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:10:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:57,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:57,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:10:57,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:57,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:10:57,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:57,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:10:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:10:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:10:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:10:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:10:57,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634266554] [2020-09-25 09:10:57,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:10:57,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:10:57,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897248149] [2020-09-25 09:10:57,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:10:57,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:10:57,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:10:57,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:10:57,115 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 09:10:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:10:57,410 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 09:10:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:10:57,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 09:10:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:10:57,413 INFO L225 Difference]: With dead ends: 187 [2020-09-25 09:10:57,414 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 09:10:57,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:10:57,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 09:10:57,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 09:10:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 09:10:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 09:10:57,430 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 09:10:57,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:10:57,431 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 09:10:57,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:10:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 09:10:57,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 09:10:57,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:10:57,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:10:57,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:10:57,434 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:10:57,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:10:57,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 09:10:57,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:10:57,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877715546] [2020-09-25 09:10:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:10:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:57,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:57,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:57,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 09:10:57,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:57,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 09:10:57,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:57,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:10:57,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:10:57,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:10:57,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:10:57,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:10:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:57,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:57,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:57,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:10:57,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:57,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:10:57,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:57,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:10:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:10:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:10:57,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:10:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:10:57,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877715546] [2020-09-25 09:10:57,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:10:57,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:10:57,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451151262] [2020-09-25 09:10:57,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:10:57,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:10:57,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:10:57,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:10:57,660 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 09:10:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:10:58,249 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 09:10:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:10:58,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 09:10:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:10:58,255 INFO L225 Difference]: With dead ends: 237 [2020-09-25 09:10:58,255 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 09:10:58,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:10:58,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 09:10:58,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 09:10:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 09:10:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 09:10:58,275 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 09:10:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:10:58,276 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 09:10:58,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:10:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 09:10:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 09:10:58,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:10:58,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:10:58,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:10:58,278 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:10:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:10:58,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 09:10:58,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:10:58,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154635306] [2020-09-25 09:10:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:10:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:58,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:58,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:58,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 09:10:58,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:10:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-09-25 09:10:58,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:58,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:10:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:10:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:10:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:10:58,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:10:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:58,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:58,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:58,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:10:58,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:58,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:10:58,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:58,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:10:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:10:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:10:58,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:10:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:10:58,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154635306] [2020-09-25 09:10:58,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:10:58,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:10:58,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364605381] [2020-09-25 09:10:58,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:10:58,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:10:58,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:10:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:10:58,908 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-25 09:10:59,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:10:59,195 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 09:10:59,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:10:59,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 09:10:59,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:10:59,197 INFO L225 Difference]: With dead ends: 183 [2020-09-25 09:10:59,197 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 09:10:59,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:10:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 09:10:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 09:10:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 09:10:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 09:10:59,208 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 09:10:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:10:59,209 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 09:10:59,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:10:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 09:10:59,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 09:10:59,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:10:59,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:10:59,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:10:59,212 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:10:59,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:10:59,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 09:10:59,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:10:59,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823637531] [2020-09-25 09:10:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:10:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:59,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:59,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:59,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:59,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:59,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 09:10:59,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:10:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 09:10:59,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:59,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:10:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:10:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:10:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:10:59,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:10:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:10:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:10:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:10:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:10:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:10:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:10:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:10:59,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:10:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:10:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:10:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:10:59,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 09:10:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:10:59,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823637531] [2020-09-25 09:10:59,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:10:59,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:10:59,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761987377] [2020-09-25 09:10:59,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:10:59,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:10:59,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:10:59,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:10:59,706 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-25 09:11:00,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:00,369 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-25 09:11:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:11:00,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 09:11:00,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:00,376 INFO L225 Difference]: With dead ends: 305 [2020-09-25 09:11:00,376 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 09:11:00,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:11:00,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 09:11:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-25 09:11:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 09:11:00,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-25 09:11:00,411 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-25 09:11:00,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:00,412 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-25 09:11:00,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:11:00,412 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-25 09:11:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 09:11:00,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:00,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:00,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:11:00,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:00,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 09:11:00,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:00,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555759601] [2020-09-25 09:11:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:00,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:00,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 09:11:00,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:11:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-09-25 09:11:00,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:00,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:11:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:11:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 09:11:00,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:01,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:01,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:01,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:01,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:01,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:01,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:01,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:01,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:11:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:01,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555759601] [2020-09-25 09:11:01,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:01,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:11:01,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948176256] [2020-09-25 09:11:01,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:11:01,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:01,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:11:01,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:11:01,066 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-25 09:11:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:02,203 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-25 09:11:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:11:02,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 09:11:02,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:02,209 INFO L225 Difference]: With dead ends: 471 [2020-09-25 09:11:02,209 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 09:11:02,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:11:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 09:11:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-25 09:11:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 09:11:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 09:11:02,223 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 09:11:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:02,225 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 09:11:02,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:11:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 09:11:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 09:11:02,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:02,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:02,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:11:02,234 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:02,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:02,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 09:11:02,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:02,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080397386] [2020-09-25 09:11:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:02,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:02,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:02,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:02,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:06,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:06,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 09:11:06,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:11:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3867 [2020-09-25 09:11:06,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:06,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:11:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 09:11:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 09:11:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:06,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:06,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:06,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:06,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:06,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:06,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:06,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:06,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080397386] [2020-09-25 09:11:06,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:06,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:11:06,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905784768] [2020-09-25 09:11:06,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:11:06,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:06,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:11:06,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:11:06,218 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-25 09:11:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:06,748 INFO L93 Difference]: Finished difference Result 298 states and 304 transitions. [2020-09-25 09:11:06,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:11:06,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 09:11:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:06,752 INFO L225 Difference]: With dead ends: 298 [2020-09-25 09:11:06,752 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 09:11:06,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:11:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 09:11:06,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 207. [2020-09-25 09:11:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-25 09:11:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 212 transitions. [2020-09-25 09:11:06,763 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 212 transitions. Word has length 69 [2020-09-25 09:11:06,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:06,763 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 212 transitions. [2020-09-25 09:11:06,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:11:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 212 transitions. [2020-09-25 09:11:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 09:11:06,766 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:06,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:06,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:11:06,767 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:06,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:06,767 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 09:11:06,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:06,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866821490] [2020-09-25 09:11:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:06,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:08,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:08,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 09:11:08,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:11:08,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1634 [2020-09-25 09:11:08,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:08,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:11:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:11:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:11:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:08,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:08,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:08,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:08,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:08,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:08,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:08,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:08,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:08,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866821490] [2020-09-25 09:11:08,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:08,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:11:08,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904438992] [2020-09-25 09:11:08,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:11:08,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:08,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:11:08,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:11:08,488 INFO L87 Difference]: Start difference. First operand 207 states and 212 transitions. Second operand 7 states. [2020-09-25 09:11:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:09,068 INFO L93 Difference]: Finished difference Result 316 states and 322 transitions. [2020-09-25 09:11:09,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:11:09,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 09:11:09,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:09,072 INFO L225 Difference]: With dead ends: 316 [2020-09-25 09:11:09,072 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 09:11:09,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:11:09,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 09:11:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 205. [2020-09-25 09:11:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 09:11:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 210 transitions. [2020-09-25 09:11:09,086 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 210 transitions. Word has length 74 [2020-09-25 09:11:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:09,086 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 210 transitions. [2020-09-25 09:11:09,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:11:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 210 transitions. [2020-09-25 09:11:09,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 09:11:09,087 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:09,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:09,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 09:11:09,088 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:09,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1017357829, now seen corresponding path program 1 times [2020-09-25 09:11:09,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:09,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19757964] [2020-09-25 09:11:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:09,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:09,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:10,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:10,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 09:11:10,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:11:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1648 [2020-09-25 09:11:10,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:10,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:11:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:11:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:11:10,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:10,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:10,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:10,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:10,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:11:10,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:10,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:10,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:10,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19757964] [2020-09-25 09:11:10,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:10,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:11:10,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250453397] [2020-09-25 09:11:10,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:11:10,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:10,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:11:10,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:11:10,825 INFO L87 Difference]: Start difference. First operand 205 states and 210 transitions. Second operand 7 states. [2020-09-25 09:11:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:11,102 INFO L93 Difference]: Finished difference Result 205 states and 210 transitions. [2020-09-25 09:11:11,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:11:11,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 09:11:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:11,104 INFO L225 Difference]: With dead ends: 205 [2020-09-25 09:11:11,104 INFO L226 Difference]: Without dead ends: 203 [2020-09-25 09:11:11,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:11:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-25 09:11:11,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2020-09-25 09:11:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 09:11:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 09:11:11,112 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 09:11:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:11,113 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 09:11:11,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:11:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 09:11:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 09:11:11,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:11,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:11,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 09:11:11,115 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:11,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:11,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 09:11:11,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:11,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028948169] [2020-09-25 09:11:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:11,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:11,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:11,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:12,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:12,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 09:11:12,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:11:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1838 [2020-09-25 09:11:12,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:12,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:12,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:11:12,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 09:11:12,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 09:11:12,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:11:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:13,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:13,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:13,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:13,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:13,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:13,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028948169] [2020-09-25 09:11:13,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:13,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 09:11:13,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454794047] [2020-09-25 09:11:13,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 09:11:13,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:13,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 09:11:13,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 09:11:13,024 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 4 states. [2020-09-25 09:11:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:13,290 INFO L93 Difference]: Finished difference Result 292 states and 298 transitions. [2020-09-25 09:11:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 09:11:13,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-09-25 09:11:13,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:13,292 INFO L225 Difference]: With dead ends: 292 [2020-09-25 09:11:13,292 INFO L226 Difference]: Without dead ends: 193 [2020-09-25 09:11:13,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:11:13,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-25 09:11:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-09-25 09:11:13,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 09:11:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2020-09-25 09:11:13,303 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 75 [2020-09-25 09:11:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:13,304 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2020-09-25 09:11:13,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 09:11:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2020-09-25 09:11:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 09:11:13,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:13,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:13,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 09:11:13,305 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:13,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:13,306 INFO L82 PathProgramCache]: Analyzing trace with hash 661067438, now seen corresponding path program 1 times [2020-09-25 09:11:13,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:13,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219766810] [2020-09-25 09:11:13,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:13,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:13,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:13,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:14,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:14,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:15,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:15,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 09:11:15,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:11:15,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2577 [2020-09-25 09:11:15,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:15,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:11:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:11:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 09:11:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:15,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:15,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:16,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:16,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:11:16,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:16,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:16,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219766810] [2020-09-25 09:11:16,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:16,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:11:16,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951835465] [2020-09-25 09:11:16,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:11:16,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:16,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:11:16,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:11:16,016 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 8 states. [2020-09-25 09:11:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:16,547 INFO L93 Difference]: Finished difference Result 193 states and 196 transitions. [2020-09-25 09:11:16,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:11:16,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-25 09:11:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:16,549 INFO L225 Difference]: With dead ends: 193 [2020-09-25 09:11:16,549 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 09:11:16,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:11:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 09:11:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-09-25 09:11:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 09:11:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2020-09-25 09:11:16,558 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 80 [2020-09-25 09:11:16,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:16,559 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2020-09-25 09:11:16,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:11:16,559 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2020-09-25 09:11:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 09:11:16,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:16,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:16,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 09:11:16,560 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:16,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:16,561 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-25 09:11:16,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:16,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433444382] [2020-09-25 09:11:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:16,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:16,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:16,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:21,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:21,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 09:11:21,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:11:21,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:11:21,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:21,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:21,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:11:21,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:11:21,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 09:11:21,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:21,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:21,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:21,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:21,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:21,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:21,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:21,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:21,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:21,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:21,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433444382] [2020-09-25 09:11:21,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:21,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:11:21,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328300677] [2020-09-25 09:11:21,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:11:21,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:21,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:11:21,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:11:21,645 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2020-09-25 09:11:22,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:22,020 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2020-09-25 09:11:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:11:22,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-25 09:11:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:22,023 INFO L225 Difference]: With dead ends: 191 [2020-09-25 09:11:22,024 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 09:11:22,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:11:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 09:11:22,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-25 09:11:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 09:11:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2020-09-25 09:11:22,035 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 85 [2020-09-25 09:11:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:22,036 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2020-09-25 09:11:22,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:11:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2020-09-25 09:11:22,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 09:11:22,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:22,038 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:22,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 09:11:22,039 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:22,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:22,040 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 09:11:22,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:22,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114140731] [2020-09-25 09:11:22,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:22,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:22,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:24,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:24,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 09:11:24,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:11:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2209 [2020-09-25 09:11:24,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:24,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:11:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:11:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 09:11:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:24,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:24,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:24,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:24,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:24,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:24,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:24,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:24,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:24,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:24,376 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:11:24,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114140731] [2020-09-25 09:11:24,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:11:24,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 09:11:24,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118726442] [2020-09-25 09:11:24,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:11:24,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:24,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:11:24,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:11:24,379 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2020-09-25 09:11:24,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:24,929 INFO L93 Difference]: Finished difference Result 279 states and 283 transitions. [2020-09-25 09:11:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:11:24,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 09:11:24,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:24,932 INFO L225 Difference]: With dead ends: 279 [2020-09-25 09:11:24,932 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 09:11:24,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:11:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 09:11:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2020-09-25 09:11:24,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 09:11:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 185 transitions. [2020-09-25 09:11:24,944 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 185 transitions. Word has length 86 [2020-09-25 09:11:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:24,944 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 185 transitions. [2020-09-25 09:11:24,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:11:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 185 transitions. [2020-09-25 09:11:24,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 09:11:24,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:24,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:24,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 09:11:24,946 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:24,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:24,947 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 09:11:24,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:24,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938703415] [2020-09-25 09:11:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:24,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:25,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:27,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:27,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 09:11:27,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:11:27,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2153 [2020-09-25 09:11:27,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:27,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:11:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:11:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 09:11:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:27,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:27,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:27,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:27,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:27,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:27,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:27,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:27,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:11:27,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938703415] [2020-09-25 09:11:27,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:11:27,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 09:11:27,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301801603] [2020-09-25 09:11:27,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:11:27,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:27,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:11:27,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:11:27,226 INFO L87 Difference]: Start difference. First operand 182 states and 185 transitions. Second operand 8 states. [2020-09-25 09:11:27,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:27,600 INFO L93 Difference]: Finished difference Result 182 states and 185 transitions. [2020-09-25 09:11:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:11:27,601 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 09:11:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:27,602 INFO L225 Difference]: With dead ends: 182 [2020-09-25 09:11:27,602 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 09:11:27,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:11:27,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 09:11:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2020-09-25 09:11:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 09:11:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-09-25 09:11:27,610 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 86 [2020-09-25 09:11:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:27,611 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-09-25 09:11:27,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:11:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-09-25 09:11:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 09:11:27,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:27,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:27,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 09:11:27,614 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:27,615 INFO L82 PathProgramCache]: Analyzing trace with hash -228867626, now seen corresponding path program 1 times [2020-09-25 09:11:27,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:27,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735061944] [2020-09-25 09:11:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:27,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:27,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:27,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:27,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:28,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:28,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:32,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:32,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 09:11:32,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:11:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 09:11:32,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:32,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:11:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:11:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 09:11:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:32,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:32,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:32,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:32,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:32,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:32,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:32,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:32,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:11:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:32,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735061944] [2020-09-25 09:11:32,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:32,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:11:32,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643709579] [2020-09-25 09:11:32,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:11:32,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:32,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:11:32,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:11:32,750 INFO L87 Difference]: Start difference. First operand 169 states and 171 transitions. Second operand 8 states. [2020-09-25 09:11:33,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:33,159 INFO L93 Difference]: Finished difference Result 169 states and 171 transitions. [2020-09-25 09:11:33,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:11:33,159 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 09:11:33,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:33,161 INFO L225 Difference]: With dead ends: 169 [2020-09-25 09:11:33,161 INFO L226 Difference]: Without dead ends: 167 [2020-09-25 09:11:33,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:11:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-09-25 09:11:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-09-25 09:11:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 09:11:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2020-09-25 09:11:33,168 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 99 [2020-09-25 09:11:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:33,169 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2020-09-25 09:11:33,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:11:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2020-09-25 09:11:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 09:11:33,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:33,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:33,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 09:11:33,170 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:33,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:33,171 INFO L82 PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times [2020-09-25 09:11:33,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:33,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85796607] [2020-09-25 09:11:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:33,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:33,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:38,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:38,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 09:11:38,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:11:38,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:11:38,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:38,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:38,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:11:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:11:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:11:38,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:38,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:38,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:38,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:38,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:38,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:38,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:38,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:38,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85796607] [2020-09-25 09:11:38,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:38,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:11:38,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665188260] [2020-09-25 09:11:38,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:11:38,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:38,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:11:38,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:11:38,275 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand 8 states. [2020-09-25 09:11:38,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:38,778 INFO L93 Difference]: Finished difference Result 207 states and 210 transitions. [2020-09-25 09:11:38,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:11:38,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-09-25 09:11:38,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:38,781 INFO L225 Difference]: With dead ends: 207 [2020-09-25 09:11:38,781 INFO L226 Difference]: Without dead ends: 205 [2020-09-25 09:11:38,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:11:38,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-25 09:11:38,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2020-09-25 09:11:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 09:11:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2020-09-25 09:11:38,788 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 104 [2020-09-25 09:11:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:38,788 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2020-09-25 09:11:38,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:11:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2020-09-25 09:11:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 09:11:38,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:38,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:38,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 09:11:38,790 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:38,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1039394916, now seen corresponding path program 1 times [2020-09-25 09:11:38,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:38,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385663096] [2020-09-25 09:11:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:38,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:38,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:38,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:38,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:39,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:43,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:43,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 09:11:43,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:11:43,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 09:11:43,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:43,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:11:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 09:11:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:11:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:43,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:11:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:43,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:43,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:11:43,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:11:43,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:11:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:11:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:11:43,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:11:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:11:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:11:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:11:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:11:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:11:43,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385663096] [2020-09-25 09:11:43,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:11:43,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:11:43,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019021770] [2020-09-25 09:11:43,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:11:43,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:11:43,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:11:43,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:11:43,915 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand 8 states. [2020-09-25 09:11:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:11:44,412 INFO L93 Difference]: Finished difference Result 170 states and 172 transitions. [2020-09-25 09:11:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:11:44,412 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-09-25 09:11:44,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:11:44,414 INFO L225 Difference]: With dead ends: 170 [2020-09-25 09:11:44,414 INFO L226 Difference]: Without dead ends: 168 [2020-09-25 09:11:44,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:11:44,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-25 09:11:44,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 163. [2020-09-25 09:11:44,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-25 09:11:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 165 transitions. [2020-09-25 09:11:44,421 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 165 transitions. Word has length 111 [2020-09-25 09:11:44,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:11:44,421 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 165 transitions. [2020-09-25 09:11:44,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:11:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 165 transitions. [2020-09-25 09:11:44,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-09-25 09:11:44,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:11:44,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:11:44,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 09:11:44,423 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:11:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:11:44,424 INFO L82 PathProgramCache]: Analyzing trace with hash -109554473, now seen corresponding path program 1 times [2020-09-25 09:11:44,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:11:44,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090411608] [2020-09-25 09:11:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:11:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:11:44,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:44,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:44,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:44,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:11:44,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking...