/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=BIGGEST --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 [2020-09-24 20:42:32,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:42:32,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:42:32,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:42:32,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:42:32,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:42:32,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:42:32,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:42:32,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:42:32,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:42:32,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:42:32,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:42:32,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:42:32,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:42:32,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:42:32,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:42:32,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:42:32,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:42:32,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:42:32,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:42:32,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:42:32,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:42:32,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:42:32,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:42:32,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:42:32,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:42:32,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:42:32,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:42:32,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:42:32,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:42:32,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:42:32,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:42:32,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:42:32,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:42:32,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:42:32,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:42:32,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:42:32,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:42:32,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:42:32,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:42:32,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:42:32,812 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 [2020-09-24 20:42:32,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:42:32,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:42:32,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:42:32,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:42:32,842 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:42:32,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:42:32,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:42:32,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:42:32,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:42:32,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:42:32,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:42:32,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:42:32,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:42:32,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:42:32,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:42:32,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:42:32,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:42:32,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:42:32,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:42:32,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:42:32,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:42:32,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:42:32,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:42:32,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:42:32,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:42:32,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:42:32,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:42:32,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:42:32,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:42:32,848 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:42:33,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:42:33,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:42:33,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:42:33,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:42:33,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:42:33,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 20:42:33,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6910ae638/a67a4f49976b46db92706ccca9625b66/FLAG80c56d2e7 [2020-09-24 20:42:34,058 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:42:34,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 20:42:34,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6910ae638/a67a4f49976b46db92706ccca9625b66/FLAG80c56d2e7 [2020-09-24 20:42:34,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6910ae638/a67a4f49976b46db92706ccca9625b66 [2020-09-24 20:42:34,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:42:34,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:42:34,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:42:34,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:42:34,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:42:34,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fd9ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34, skipping insertion in model container [2020-09-24 20:42:34,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:42:34,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:42:34,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:42:34,750 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:42:34,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:42:34,816 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:42:34,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34 WrapperNode [2020-09-24 20:42:34,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:42:34,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:42:34,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:42:34,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:42:34,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (1/1) ... [2020-09-24 20:42:34,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:42:34,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:42:34,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:42:34,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:42:34,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (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 [2020-09-24 20:42:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:42:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:42:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:42:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:42:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:42:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:42:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:42:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:42:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:42:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:42:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:42:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:42:35,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:42:35,790 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:42:35,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:42:35 BoogieIcfgContainer [2020-09-24 20:42:35,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:42:35,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:42:35,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:42:35,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:42:35,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:42:34" (1/3) ... [2020-09-24 20:42:35,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539e902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:42:35, skipping insertion in model container [2020-09-24 20:42:35,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:34" (2/3) ... [2020-09-24 20:42:35,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539e902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:42:35, skipping insertion in model container [2020-09-24 20:42:35,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:42:35" (3/3) ... [2020-09-24 20:42:35,813 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 20:42:35,824 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:42:35,837 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-24 20:42:35,860 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-24 20:42:35,898 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:42:35,898 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:42:35,898 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:42:35,898 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:42:35,898 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:42:35,899 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:42:35,899 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:42:35,899 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:42:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-24 20:42:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 20:42:35,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:35,945 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] [2020-09-24 20:42:35,946 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]=== [2020-09-24 20:42:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:35,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-24 20:42:35,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:35,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251759005] [2020-09-24 20:42:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:36,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:36,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:36,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 20:42:36,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-24 20:42:36,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:42:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 20:42:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:42:36,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:42:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:36,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:36,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:36,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:36,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:42:36,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:36,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:36,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251759005] [2020-09-24 20:42:36,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:36,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:42:36,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005777005] [2020-09-24 20:42:36,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:42:36,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:36,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:42:36,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:42:36,610 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-24 20:42:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:37,567 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-24 20:42:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:42:37,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-24 20:42:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:37,594 INFO L225 Difference]: With dead ends: 290 [2020-09-24 20:42:37,594 INFO L226 Difference]: Without dead ends: 239 [2020-09-24 20:42:37,603 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 [2020-09-24 20:42:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-24 20:42:37,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-24 20:42:37,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 20:42:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-24 20:42:37,722 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-24 20:42:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:37,723 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-24 20:42:37,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:42:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-24 20:42:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 20:42:37,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:37,725 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] [2020-09-24 20:42:37,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:42:37,726 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]=== [2020-09-24 20:42:37,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:37,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-24 20:42:37,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:37,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371076063] [2020-09-24 20:42:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:37,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:37,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:37,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 20:42:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 20:42:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 20:42:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:42:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:38,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:38,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:38,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:38,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:38,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:42:38,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:38,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371076063] [2020-09-24 20:42:38,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:38,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:38,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53256450] [2020-09-24 20:42:38,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:38,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:38,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:38,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:38,106 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-24 20:42:38,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:38,405 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-24 20:42:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:42:38,406 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 20:42:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:38,410 INFO L225 Difference]: With dead ends: 187 [2020-09-24 20:42:38,410 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 20:42:38,412 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 [2020-09-24 20:42:38,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 20:42:38,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-24 20:42:38,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-24 20:42:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-24 20:42:38,447 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-24 20:42:38,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:38,447 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-24 20:42:38,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-24 20:42:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 20:42:38,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:38,450 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] [2020-09-24 20:42:38,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:42:38,451 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]=== [2020-09-24 20:42:38,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:38,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-24 20:42:38,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:38,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914987489] [2020-09-24 20:42:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:38,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:38,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:42:38,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 20:42:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:42:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 20:42:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:42:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:38,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:38,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:38,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:38,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:38,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:38,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:38,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:38,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:38,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:38,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:38,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:38,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914987489] [2020-09-24 20:42:38,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:38,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:42:38,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414040715] [2020-09-24 20:42:38,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:42:38,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:38,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:42:38,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:42:38,704 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-24 20:42:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:39,309 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-24 20:42:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:39,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-24 20:42:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:39,313 INFO L225 Difference]: With dead ends: 237 [2020-09-24 20:42:39,314 INFO L226 Difference]: Without dead ends: 235 [2020-09-24 20:42:39,314 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 [2020-09-24 20:42:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-24 20:42:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-24 20:42:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-24 20:42:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-24 20:42:39,328 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-24 20:42:39,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:39,328 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-24 20:42:39,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:42:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-24 20:42:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 20:42:39,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:39,331 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] [2020-09-24 20:42:39,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:42:39,331 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]=== [2020-09-24 20:42:39,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:39,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-24 20:42:39,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:39,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063741849] [2020-09-24 20:42:39,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:39,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:39,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:39,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:42:39,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:42:39,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-09-24 20:42:39,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:39,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:39,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 20:42:39,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:42:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:42:40,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:40,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:40,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:40,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:40,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:42:40,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:40,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:40,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:40,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063741849] [2020-09-24 20:42:40,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:40,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:40,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303757997] [2020-09-24 20:42:40,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:40,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:40,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:40,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:40,050 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 8 states. [2020-09-24 20:42:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:40,316 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-24 20:42:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:42:40,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-09-24 20:42:40,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:40,319 INFO L225 Difference]: With dead ends: 183 [2020-09-24 20:42:40,319 INFO L226 Difference]: Without dead ends: 181 [2020-09-24 20:42:40,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:42:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-24 20:42:40,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-24 20:42:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-24 20:42:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-24 20:42:40,331 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-24 20:42:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:40,331 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-24 20:42:40,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-24 20:42:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 20:42:40,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:40,334 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] [2020-09-24 20:42:40,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:42:40,335 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]=== [2020-09-24 20:42:40,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:40,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-24 20:42:40,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:40,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838673345] [2020-09-24 20:42:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:40,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:40,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 20:42:40,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:42:40,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-09-24 20:42:40,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:40,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:40,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 20:42:40,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:42:40,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:40,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:40,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:40,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:40,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:40,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838673345] [2020-09-24 20:42:40,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:40,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:40,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631852965] [2020-09-24 20:42:40,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:40,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:40,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:40,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:40,918 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 8 states. [2020-09-24 20:42:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:42,200 INFO L93 Difference]: Finished difference Result 334 states and 341 transitions. [2020-09-24 20:42:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:42:42,201 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-09-24 20:42:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:42,205 INFO L225 Difference]: With dead ends: 334 [2020-09-24 20:42:42,205 INFO L226 Difference]: Without dead ends: 332 [2020-09-24 20:42:42,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:42:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-24 20:42:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 192. [2020-09-24 20:42:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-24 20:42:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-24 20:42:42,223 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-24 20:42:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:42,225 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-24 20:42:42,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-24 20:42:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 20:42:42,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:42,230 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] [2020-09-24 20:42:42,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:42:42,231 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]=== [2020-09-24 20:42:42,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:42,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-24 20:42:42,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:42,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350623446] [2020-09-24 20:42:42,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:42,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:42,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:42,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:42,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 20:42:42,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:42:42,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-24 20:42:42,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 20:42:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 20:42:42,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:42,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:42,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:42,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:42,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:42,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:42,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:42,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:42,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350623446] [2020-09-24 20:42:42,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:42,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:42,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965542623] [2020-09-24 20:42:42,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:42,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:42,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:42,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:42,831 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 8 states. [2020-09-24 20:42:44,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:44,230 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-24 20:42:44,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:42:44,230 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 20:42:44,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:44,233 INFO L225 Difference]: With dead ends: 471 [2020-09-24 20:42:44,233 INFO L226 Difference]: Without dead ends: 469 [2020-09-24 20:42:44,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:42:44,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-24 20:42:44,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-24 20:42:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 20:42:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 20:42:44,244 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 20:42:44,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:44,246 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 20:42:44,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:44,254 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 20:42:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 20:42:44,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:44,262 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] [2020-09-24 20:42:44,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:42:44,262 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]=== [2020-09-24 20:42:44,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:44,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-24 20:42:44,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:44,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423648942] [2020-09-24 20:42:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:44,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:44,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:44,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:44,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:48,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 20:42:48,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:42:48,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3903 [2020-09-24 20:42:48,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 20:42:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 20:42:48,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:48,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:48,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:48,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:48,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:48,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:48,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:48,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423648942] [2020-09-24 20:42:48,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:48,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:48,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299991510] [2020-09-24 20:42:48,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:48,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:48,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:48,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:48,288 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 8 states. [2020-09-24 20:42:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:48,669 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-24 20:42:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:42:48,670 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 20:42:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:48,672 INFO L225 Difference]: With dead ends: 197 [2020-09-24 20:42:48,672 INFO L226 Difference]: Without dead ends: 195 [2020-09-24 20:42:48,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:42:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-24 20:42:48,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-24 20:42:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 20:42:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-24 20:42:48,683 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-24 20:42:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:48,683 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-24 20:42:48,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-24 20:42:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 20:42:48,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:48,685 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] [2020-09-24 20:42:48,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:42:48,686 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]=== [2020-09-24 20:42:48,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:48,687 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-24 20:42:48,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:48,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151489078] [2020-09-24 20:42:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:48,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:50,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:50,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 20:42:50,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:42:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1600 [2020-09-24 20:42:50,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 20:42:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:42:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:50,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:50,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:50,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:50,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:50,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:50,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:50,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:50,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:50,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151489078] [2020-09-24 20:42:50,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:50,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:50,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197443836] [2020-09-24 20:42:50,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:50,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:50,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:50,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:50,391 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 8 states. [2020-09-24 20:42:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:50,996 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-24 20:42:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:50,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-24 20:42:50,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:50,999 INFO L225 Difference]: With dead ends: 297 [2020-09-24 20:42:50,999 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 20:42:51,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:42:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 20:42:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-24 20:42:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 20:42:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-24 20:42:51,010 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-24 20:42:51,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:51,011 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-24 20:42:51,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-24 20:42:51,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 20:42:51,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:51,019 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] [2020-09-24 20:42:51,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:42:51,020 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]=== [2020-09-24 20:42:51,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:51,020 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-24 20:42:51,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:51,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609235153] [2020-09-24 20:42:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:51,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:51,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:51,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:52,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:52,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 20:42:52,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:42:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1794 [2020-09-24 20:42:52,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:52,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:42:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 20:42:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 20:42:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:42:53,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:53,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:53,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:53,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:53,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:53,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:53,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:53,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:53,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:53,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:53,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609235153] [2020-09-24 20:42:53,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:53,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:42:53,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132430036] [2020-09-24 20:42:53,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:42:53,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:53,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:42:53,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:42:53,077 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 9 states. [2020-09-24 20:42:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:53,526 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2020-09-24 20:42:53,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:42:53,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-09-24 20:42:53,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:53,529 INFO L225 Difference]: With dead ends: 204 [2020-09-24 20:42:53,529 INFO L226 Difference]: Without dead ends: 202 [2020-09-24 20:42:53,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:42:53,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-24 20:42:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2020-09-24 20:42:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 20:42:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-24 20:42:53,542 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-24 20:42:53,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:53,542 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-24 20:42:53,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:42:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-24 20:42:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 20:42:53,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:53,544 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] [2020-09-24 20:42:53,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 20:42:53,544 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]=== [2020-09-24 20:42:53,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:53,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-24 20:42:53,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:53,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973030318] [2020-09-24 20:42:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:53,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:53,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:53,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:53,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:53,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:55,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:58,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 20:42:58,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:42:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:42:58,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:42:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 20:42:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:42:58,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:58,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:58,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:58,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:58,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:42:58,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:42:58,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:42:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:58,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973030318] [2020-09-24 20:42:58,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:58,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:42:58,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369463091] [2020-09-24 20:42:58,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:42:58,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:58,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:42:58,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:42:58,649 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 8 states. [2020-09-24 20:42:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:59,085 INFO L93 Difference]: Finished difference Result 191 states and 196 transitions. [2020-09-24 20:42:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:42:59,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-24 20:42:59,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:59,087 INFO L225 Difference]: With dead ends: 191 [2020-09-24 20:42:59,087 INFO L226 Difference]: Without dead ends: 189 [2020-09-24 20:42:59,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:42:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-24 20:42:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-24 20:42:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-24 20:42:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-24 20:42:59,095 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 80 [2020-09-24 20:42:59,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:59,096 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-24 20:42:59,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:42:59,096 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-24 20:42:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 20:42:59,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:59,097 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] [2020-09-24 20:42:59,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 20:42:59,098 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]=== [2020-09-24 20:42:59,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:59,098 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-24 20:42:59,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:59,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004409456] [2020-09-24 20:42:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:59,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:59,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:01,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:01,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 20:43:01,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:43:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2249 [2020-09-24 20:43:01,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:43:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 20:43:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 20:43:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:01,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:43:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:01,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:01,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:43:01,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:43:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:43:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:43:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:43:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:43:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:43:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 20:43:01,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004409456] [2020-09-24 20:43:01,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:43:01,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:43:01,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983830322] [2020-09-24 20:43:01,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:43:01,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:43:01,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:43:01,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:43:01,580 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 9 states. [2020-09-24 20:43:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:43:02,556 INFO L93 Difference]: Finished difference Result 301 states and 307 transitions. [2020-09-24 20:43:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:43:02,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-09-24 20:43:02,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:43:02,558 INFO L225 Difference]: With dead ends: 301 [2020-09-24 20:43:02,559 INFO L226 Difference]: Without dead ends: 299 [2020-09-24 20:43:02,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:43:02,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-24 20:43:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 182. [2020-09-24 20:43:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-24 20:43:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-24 20:43:02,567 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-24 20:43:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:43:02,568 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-24 20:43:02,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:43:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-24 20:43:02,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 20:43:02,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:43:02,569 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] [2020-09-24 20:43:02,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 20:43:02,569 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]=== [2020-09-24 20:43:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:43:02,570 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-24 20:43:02,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:43:02,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116833023] [2020-09-24 20:43:02,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:43:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:02,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:02,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:02,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:04,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:04,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 20:43:04,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:43:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2036 [2020-09-24 20:43:04,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:43:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 20:43:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:43:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:04,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:43:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:04,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:04,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:43:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:43:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:43:04,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:43:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:43:04,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:43:04,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:43:04,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116833023] [2020-09-24 20:43:04,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:43:04,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 20:43:04,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484331506] [2020-09-24 20:43:04,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:43:04,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:43:04,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:43:04,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:43:04,783 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 10 states. [2020-09-24 20:43:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:43:05,758 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-24 20:43:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:43:05,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-24 20:43:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:43:05,761 INFO L225 Difference]: With dead ends: 288 [2020-09-24 20:43:05,761 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 20:43:05,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:43:05,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 20:43:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 169. [2020-09-24 20:43:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-24 20:43:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-24 20:43:05,770 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-24 20:43:05,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:43:05,770 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-24 20:43:05,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:43:05,771 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-24 20:43:05,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-24 20:43:05,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:43:05,772 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] [2020-09-24 20:43:05,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 20:43:05,772 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]=== [2020-09-24 20:43:05,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:43:05,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-24 20:43:05,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:43:05,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495401612] [2020-09-24 20:43:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:43:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:05,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:05,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:06,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:06,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4858 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 20:43:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:43:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:10,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:10,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:10,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:43:10,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:43:10,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:43:10,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:43:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:43:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:43:10,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:43:10,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495401612] [2020-09-24 20:43:10,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:43:10,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:43:10,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181556111] [2020-09-24 20:43:10,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:43:10,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:43:10,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:43:10,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:43:10,764 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 9 states. [2020-09-24 20:43:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:43:11,322 INFO L93 Difference]: Finished difference Result 174 states and 177 transitions. [2020-09-24 20:43:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:43:11,323 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-09-24 20:43:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:43:11,325 INFO L225 Difference]: With dead ends: 174 [2020-09-24 20:43:11,325 INFO L226 Difference]: Without dead ends: 172 [2020-09-24 20:43:11,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:43:11,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-09-24 20:43:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2020-09-24 20:43:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-24 20:43:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-24 20:43:11,340 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-24 20:43:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:43:11,341 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-24 20:43:11,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:43:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-24 20:43:11,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 20:43:11,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:43:11,344 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] [2020-09-24 20:43:11,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 20:43:11,344 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]=== [2020-09-24 20:43:11,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:43:11,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-24 20:43:11,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:43:11,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240668934] [2020-09-24 20:43:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:43:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:11,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:11,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:11,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:11,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:11,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:11,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:12,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:16,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:16,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 20:43:16,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 20:43:16,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:43:16,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:43:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 20:43:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:43:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:16,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:43:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:16,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:16,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:16,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:43:16,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:43:16,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:43:16,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:43:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:43:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:43:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:43:16,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240668934] [2020-09-24 20:43:16,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:43:16,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:43:16,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585529678] [2020-09-24 20:43:16,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:43:16,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:43:16,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:43:16,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:43:16,521 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 9 states. [2020-09-24 20:43:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:43:17,081 INFO L93 Difference]: Finished difference Result 167 states and 170 transitions. [2020-09-24 20:43:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:43:17,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-09-24 20:43:17,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:43:17,082 INFO L225 Difference]: With dead ends: 167 [2020-09-24 20:43:17,083 INFO L226 Difference]: Without dead ends: 165 [2020-09-24 20:43:17,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:43:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-24 20:43:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-24 20:43:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-24 20:43:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 168 transitions. [2020-09-24 20:43:17,091 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 168 transitions. Word has length 99 [2020-09-24 20:43:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:43:17,092 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 168 transitions. [2020-09-24 20:43:17,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:43:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 168 transitions. [2020-09-24 20:43:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 20:43:17,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:43:17,093 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] [2020-09-24 20:43:17,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 20:43:17,096 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]=== [2020-09-24 20:43:17,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:43:17,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1977584034, now seen corresponding path program 1 times [2020-09-24 20:43:17,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:43:17,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670136933] [2020-09-24 20:43:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:43:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:17,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:17,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:17,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:17,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:17,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:17,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:22,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:22,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-24 20:43:22,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 20:43:22,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 20:43:22,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:43:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 20:43:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:43:22,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:22,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:43:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:22,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:22,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:43:22,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:43:22,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:43:22,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:43:22,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:43:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:43:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:43:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:43:22,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:43:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:43:22,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670136933] [2020-09-24 20:43:22,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:43:22,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:43:22,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553512416] [2020-09-24 20:43:22,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:43:22,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:43:22,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:43:22,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:43:22,287 INFO L87 Difference]: Start difference. First operand 165 states and 168 transitions. Second operand 9 states. [2020-09-24 20:43:22,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:43:22,829 INFO L93 Difference]: Finished difference Result 181 states and 184 transitions. [2020-09-24 20:43:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:43:22,830 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2020-09-24 20:43:22,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:43:22,832 INFO L225 Difference]: With dead ends: 181 [2020-09-24 20:43:22,832 INFO L226 Difference]: Without dead ends: 179 [2020-09-24 20:43:22,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:43:22,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-24 20:43:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 163. [2020-09-24 20:43:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-24 20:43:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 166 transitions. [2020-09-24 20:43:22,839 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 166 transitions. Word has length 106 [2020-09-24 20:43:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:43:22,840 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 166 transitions. [2020-09-24 20:43:22,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:43:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 166 transitions. [2020-09-24 20:43:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 20:43:22,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:43:22,841 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] [2020-09-24 20:43:22,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 20:43:22,842 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]=== [2020-09-24 20:43:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:43:22,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1363709155, now seen corresponding path program 1 times [2020-09-24 20:43:22,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:43:22,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110818806] [2020-09-24 20:43:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:43:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:43:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:22,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:22,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:23,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:23,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:23,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:23,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:23,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:43:25,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking...