/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:28:34,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:28:34,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:28:35,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:28:35,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:28:35,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:28:35,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:28:35,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:28:35,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:28:35,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:28:35,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:28:35,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:28:35,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:28:35,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:28:35,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:28:35,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:28:35,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:28:35,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:28:35,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:28:35,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:28:35,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:28:35,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:28:35,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:28:35,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:28:35,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:28:35,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:28:35,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:28:35,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:28:35,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:28:35,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:28:35,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:28:35,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:28:35,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:28:35,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:28:35,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:28:35,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:28:35,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:28:35,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:28:35,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:28:35,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:28:35,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:28:35,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:28:35,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:28:35,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:28:35,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:28:35,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:28:35,123 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:28:35,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:28:35,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:28:35,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:28:35,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:28:35,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:28:35,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:28:35,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:28:35,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:28:35,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:28:35,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:28:35,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:28:35,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:28:35,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:28:35,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:28:35,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:28:35,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:28:35,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:28:35,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:28:35,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:28:35,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:28:35,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:28:35,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:28:35,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:28:35,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:28:35,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:28:35,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:28:35,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:28:35,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:28:35,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:28:35,475 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:28:35,476 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.BOUNDED-8.pals.c [2020-10-15 02:28:35,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d14f76cc3/1c3baf8428df4db09de50d29886bd49c/FLAGb532760cf [2020-10-15 02:28:36,041 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:28:36,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.BOUNDED-8.pals.c [2020-10-15 02:28:36,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d14f76cc3/1c3baf8428df4db09de50d29886bd49c/FLAGb532760cf [2020-10-15 02:28:36,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d14f76cc3/1c3baf8428df4db09de50d29886bd49c [2020-10-15 02:28:36,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:28:36,371 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:28:36,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:28:36,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:28:36,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:28:36,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3210105d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36, skipping insertion in model container [2020-10-15 02:28:36,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:28:36,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:28:36,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:28:36,736 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:28:36,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:28:36,812 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:28:36,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36 WrapperNode [2020-10-15 02:28:36,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:28:36,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:28:36,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:28:36,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:28:36,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... [2020-10-15 02:28:36,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:28:36,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:28:36,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:28:36,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:28:36,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:28:36,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:28:36,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:28:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:28:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:28:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:28:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:28:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:28:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:28:36,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:28:36,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:28:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:28:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:28:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:28:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:28:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:28:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:28:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:28:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:28:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:28:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:28:37,491 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:28:37,491 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:28:37,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:28:37 BoogieIcfgContainer [2020-10-15 02:28:37,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:28:37,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:28:37,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:28:37,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:28:37,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:28:36" (1/3) ... [2020-10-15 02:28:37,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e2adfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:28:37, skipping insertion in model container [2020-10-15 02:28:37,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:36" (2/3) ... [2020-10-15 02:28:37,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e2adfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:28:37, skipping insertion in model container [2020-10-15 02:28:37,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:28:37" (3/3) ... [2020-10-15 02:28:37,513 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c [2020-10-15 02:28:37,524 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:28:37,534 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:28:37,549 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:28:37,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:28:37,586 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:28:37,586 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:28:37,586 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:28:37,586 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:28:37,587 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:28:37,587 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:28:37,587 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:28:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-15 02:28:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 02:28:37,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:37,631 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] [2020-10-15 02:28:37,631 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:37,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1188661361, now seen corresponding path program 1 times [2020-10-15 02:28:37,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:37,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478419539] [2020-10-15 02:28:37,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:37,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:28:38,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-15 02:28:38,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:28:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 02:28:38,400 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:28:38,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:38,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:28:38,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:38,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:38,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 02:28:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:28:38,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:28:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:38,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:38,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 02:28:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:38,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:28:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:38,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:38,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:38,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:38,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:38,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478419539] [2020-10-15 02:28:38,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:38,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:28:38,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465384460] [2020-10-15 02:28:38,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:28:38,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:38,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:28:38,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:28:38,654 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 7 states. [2020-10-15 02:28:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:39,447 INFO L93 Difference]: Finished difference Result 178 states and 257 transitions. [2020-10-15 02:28:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:28:39,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-15 02:28:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:39,463 INFO L225 Difference]: With dead ends: 178 [2020-10-15 02:28:39,463 INFO L226 Difference]: Without dead ends: 102 [2020-10-15 02:28:39,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:28:39,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-15 02:28:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-15 02:28:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-15 02:28:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 150 transitions. [2020-10-15 02:28:39,525 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 150 transitions. Word has length 56 [2020-10-15 02:28:39,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:39,526 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 150 transitions. [2020-10-15 02:28:39,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:28:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 150 transitions. [2020-10-15 02:28:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 02:28:39,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:39,529 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] [2020-10-15 02:28:39,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:28:39,530 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:39,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:39,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2086054639, now seen corresponding path program 1 times [2020-10-15 02:28:39,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:39,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104117657] [2020-10-15 02:28:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:39,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:39,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:39,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:28:39,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:39,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-15 02:28:39,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:39,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:28:39,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:39,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:40,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:28:40,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:40,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:28:40,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:40,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:40,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:40,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 02:28:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:40,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:40,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:28:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:40,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:40,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:40,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 02:28:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:40,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:40,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:40,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:28:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:40,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:40,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:40,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:40,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:40,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:40,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:40,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:40,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:40,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104117657] [2020-10-15 02:28:40,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:40,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:28:40,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177807102] [2020-10-15 02:28:40,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:28:40,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:40,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:28:40,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:28:40,307 INFO L87 Difference]: Start difference. First operand 102 states and 150 transitions. Second operand 11 states. [2020-10-15 02:28:40,604 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 02:28:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:41,701 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2020-10-15 02:28:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 02:28:41,701 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-10-15 02:28:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:41,705 INFO L225 Difference]: With dead ends: 183 [2020-10-15 02:28:41,705 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 02:28:41,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:28:41,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 02:28:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 102. [2020-10-15 02:28:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-15 02:28:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2020-10-15 02:28:41,726 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 56 [2020-10-15 02:28:41,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:41,727 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2020-10-15 02:28:41,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:28:41,727 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2020-10-15 02:28:41,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 02:28:41,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:41,729 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] [2020-10-15 02:28:41,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:28:41,729 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:41,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1440061290, now seen corresponding path program 1 times [2020-10-15 02:28:41,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:41,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307491610] [2020-10-15 02:28:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:41,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:41,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:42,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:46,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:46,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 02:28:46,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:28:46,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:28:46,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:46,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:46,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:28:46,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:28:46,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:28:46,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:28:46,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:46,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:46,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:46,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:46,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:46,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:46,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:46,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:46,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:46,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:46,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:46,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:46,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:28:46,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:28:46,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:46,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:28:46,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:47,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:47,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:47,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:28:47,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:47,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:47,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:47,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:47,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:47,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:47,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:47,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:47,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:47,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:47,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:28:47,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:47,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:47,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:47,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:28:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:47,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:47,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:47,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:47,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:47,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:28:47,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:47,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:47,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:47,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:47,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:47,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:47,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:28:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:47,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:47,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:47,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:28:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:47,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:47,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:28:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:47,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:47,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:47,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:47,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:47,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:47,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:47,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:47,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:28:47,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:28:47,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:47,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307491610] [2020-10-15 02:28:47,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:47,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:28:47,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655393743] [2020-10-15 02:28:47,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:28:47,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:47,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:28:47,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:28:47,338 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand 16 states. [2020-10-15 02:28:47,508 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-15 02:28:47,670 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-15 02:28:47,818 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-15 02:28:49,909 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 02:28:54,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:54,474 INFO L93 Difference]: Finished difference Result 730 states and 1020 transitions. [2020-10-15 02:28:54,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-15 02:28:54,475 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2020-10-15 02:28:54,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:54,486 INFO L225 Difference]: With dead ends: 730 [2020-10-15 02:28:54,486 INFO L226 Difference]: Without dead ends: 665 [2020-10-15 02:28:54,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1912 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1199, Invalid=4653, Unknown=0, NotChecked=0, Total=5852 [2020-10-15 02:28:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-10-15 02:28:54,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 629. [2020-10-15 02:28:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-10-15 02:28:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 867 transitions. [2020-10-15 02:28:54,581 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 867 transitions. Word has length 78 [2020-10-15 02:28:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:54,582 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 867 transitions. [2020-10-15 02:28:54,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:28:54,582 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 867 transitions. [2020-10-15 02:28:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:28:54,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:54,587 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] [2020-10-15 02:28:54,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:28:54,587 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:54,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:54,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1024777146, now seen corresponding path program 1 times [2020-10-15 02:28:54,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:54,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143318226] [2020-10-15 02:28:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:54,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:54,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:54,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:55,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:58,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:28:59,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:28:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:28:59,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:28:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:28:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:59,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:59,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:59,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:59,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:59,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:28:59,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:28:59,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:59,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:28:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:28:59,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:59,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:59,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:28:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:59,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:59,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:28:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:59,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:28:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:00,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:00,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:29:00,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:29:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:00,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:00,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:29:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:00,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143318226] [2020-10-15 02:29:00,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:00,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:29:00,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851697096] [2020-10-15 02:29:00,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:29:00,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:00,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:29:00,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:29:00,036 INFO L87 Difference]: Start difference. First operand 629 states and 867 transitions. Second operand 12 states. [2020-10-15 02:29:03,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:03,106 INFO L93 Difference]: Finished difference Result 2792 states and 3906 transitions. [2020-10-15 02:29:03,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-15 02:29:03,107 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-15 02:29:03,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:03,123 INFO L225 Difference]: With dead ends: 2792 [2020-10-15 02:29:03,123 INFO L226 Difference]: Without dead ends: 2200 [2020-10-15 02:29:03,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=266, Invalid=790, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:29:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2020-10-15 02:29:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2194. [2020-10-15 02:29:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2194 states. [2020-10-15 02:29:03,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 3025 transitions. [2020-10-15 02:29:03,305 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 3025 transitions. Word has length 80 [2020-10-15 02:29:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:03,306 INFO L479 AbstractCegarLoop]: Abstraction has 2194 states and 3025 transitions. [2020-10-15 02:29:03,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:29:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 3025 transitions. [2020-10-15 02:29:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:29:03,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:03,309 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] [2020-10-15 02:29:03,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:29:03,310 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:03,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1516632928, now seen corresponding path program 1 times [2020-10-15 02:29:03,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:03,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506885707] [2020-10-15 02:29:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:03,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:03,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:03,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:03,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:05,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:29:08,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:29:08,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:29:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 02:29:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:08,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:29:08,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:29:08,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:29:08,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:29:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:08,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:08,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:08,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:08,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:08,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:08,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:08,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:08,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:29:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:08,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:29:08,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:29:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:08,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:29:08,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:29:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:29:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:08,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:08,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:08,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:08,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:08,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:08,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:08,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:08,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506885707] [2020-10-15 02:29:08,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:08,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:29:08,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251015853] [2020-10-15 02:29:08,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:29:08,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:08,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:29:08,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:29:08,814 INFO L87 Difference]: Start difference. First operand 2194 states and 3025 transitions. Second operand 14 states. [2020-10-15 02:29:09,082 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-15 02:29:09,570 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-15 02:29:10,272 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-15 02:29:11,183 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-15 02:29:11,344 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-15 02:29:11,466 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-15 02:29:11,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:11,600 INFO L93 Difference]: Finished difference Result 4733 states and 6482 transitions. [2020-10-15 02:29:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:29:11,600 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-15 02:29:11,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:11,616 INFO L225 Difference]: With dead ends: 4733 [2020-10-15 02:29:11,617 INFO L226 Difference]: Without dead ends: 2576 [2020-10-15 02:29:11,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:29:11,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2020-10-15 02:29:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2374. [2020-10-15 02:29:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2374 states. [2020-10-15 02:29:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3271 transitions. [2020-10-15 02:29:11,808 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3271 transitions. Word has length 80 [2020-10-15 02:29:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:11,809 INFO L479 AbstractCegarLoop]: Abstraction has 2374 states and 3271 transitions. [2020-10-15 02:29:11,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:29:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3271 transitions. [2020-10-15 02:29:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:29:11,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:11,813 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] [2020-10-15 02:29:11,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:29:11,813 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:11,813 INFO L82 PathProgramCache]: Analyzing trace with hash 763866700, now seen corresponding path program 1 times [2020-10-15 02:29:11,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:11,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672741253] [2020-10-15 02:29:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:13,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:16,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:16,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:29:16,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:16,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:29:16,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:16,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:16,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:29:16,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:16,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:29:16,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:17,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:17,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:29:17,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:17,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:17,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:29:17,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:29:17,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:17,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:17,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:17,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:17,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:17,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:17,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:17,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:17,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:29:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:17,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:17,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:29:17,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:17,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:29:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:17,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:17,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:17,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:17,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:29:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:17,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:17,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:17,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:17,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:17,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:17,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:17,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:17,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672741253] [2020-10-15 02:29:17,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:17,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:29:17,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843581631] [2020-10-15 02:29:17,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:29:17,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:29:17,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:29:17,276 INFO L87 Difference]: Start difference. First operand 2374 states and 3271 transitions. Second operand 14 states. [2020-10-15 02:29:17,526 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-15 02:29:18,078 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-15 02:29:18,665 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-15 02:29:18,810 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-15 02:29:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:20,153 INFO L93 Difference]: Finished difference Result 5241 states and 7173 transitions. [2020-10-15 02:29:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:29:20,154 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-15 02:29:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:20,172 INFO L225 Difference]: With dead ends: 5241 [2020-10-15 02:29:20,172 INFO L226 Difference]: Without dead ends: 2990 [2020-10-15 02:29:20,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:29:20,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2020-10-15 02:29:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2511. [2020-10-15 02:29:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2511 states. [2020-10-15 02:29:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3454 transitions. [2020-10-15 02:29:20,437 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3454 transitions. Word has length 80 [2020-10-15 02:29:20,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:20,437 INFO L479 AbstractCegarLoop]: Abstraction has 2511 states and 3454 transitions. [2020-10-15 02:29:20,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:29:20,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3454 transitions. [2020-10-15 02:29:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:29:20,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:20,442 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] [2020-10-15 02:29:20,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:29:20,443 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:20,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:20,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1942396224, now seen corresponding path program 1 times [2020-10-15 02:29:20,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:20,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573725066] [2020-10-15 02:29:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:22,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:22,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:29:25,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:29:25,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 02:29:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:29:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:25,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:25,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:29:25,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:25,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:29:25,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:25,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:25,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:25,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:29:25,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:29:25,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:29:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:25,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:25,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:25,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:29:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:25,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:25,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:29:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:25,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:25,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:25,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:25,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:25,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:25,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573725066] [2020-10-15 02:29:25,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:25,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:29:25,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83768397] [2020-10-15 02:29:25,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:29:25,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:25,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:29:25,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:29:25,837 INFO L87 Difference]: Start difference. First operand 2511 states and 3454 transitions. Second operand 14 states. [2020-10-15 02:29:26,083 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-15 02:29:26,621 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-15 02:29:27,032 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-15 02:29:28,375 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-15 02:29:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:28,735 INFO L93 Difference]: Finished difference Result 6136 states and 8437 transitions. [2020-10-15 02:29:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:29:28,736 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-15 02:29:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:28,756 INFO L225 Difference]: With dead ends: 6136 [2020-10-15 02:29:28,756 INFO L226 Difference]: Without dead ends: 3697 [2020-10-15 02:29:28,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:29:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2020-10-15 02:29:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 2576. [2020-10-15 02:29:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2020-10-15 02:29:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3545 transitions. [2020-10-15 02:29:28,959 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3545 transitions. Word has length 80 [2020-10-15 02:29:28,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:28,960 INFO L479 AbstractCegarLoop]: Abstraction has 2576 states and 3545 transitions. [2020-10-15 02:29:28,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:29:28,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3545 transitions. [2020-10-15 02:29:28,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:29:28,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:28,962 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] [2020-10-15 02:29:28,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:29:28,962 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:28,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:28,963 INFO L82 PathProgramCache]: Analyzing trace with hash 770113516, now seen corresponding path program 1 times [2020-10-15 02:29:28,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:28,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11573947] [2020-10-15 02:29:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:28,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:29,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:29,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:30,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:33,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:33,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:29:33,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:29:33,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:33,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:29:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:29:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 02:29:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:34,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:34,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:34,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:34,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:29:34,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:29:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:34,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:29:34,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:34,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:34,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:29:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:34,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:34,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:34,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:34,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:29:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:34,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:29:34,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:34,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:34,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:34,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:29:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:34,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:29:34,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:34,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:29:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:34,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:34,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:34,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:34,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:34,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:34,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:34,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:29:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:34,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11573947] [2020-10-15 02:29:34,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:34,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:29:34,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535458650] [2020-10-15 02:29:34,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:29:34,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:34,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:29:34,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:29:34,537 INFO L87 Difference]: Start difference. First operand 2576 states and 3545 transitions. Second operand 16 states. [2020-10-15 02:29:34,741 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-15 02:29:34,929 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-15 02:29:35,087 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-15 02:29:36,949 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-15 02:29:37,067 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 02:29:39,987 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-15 02:29:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:41,724 INFO L93 Difference]: Finished difference Result 5322 states and 7892 transitions. [2020-10-15 02:29:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-15 02:29:41,725 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-15 02:29:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:41,756 INFO L225 Difference]: With dead ends: 5322 [2020-10-15 02:29:41,756 INFO L226 Difference]: Without dead ends: 4878 [2020-10-15 02:29:41,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1683 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1158, Invalid=3954, Unknown=0, NotChecked=0, Total=5112 [2020-10-15 02:29:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2020-10-15 02:29:42,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 3818. [2020-10-15 02:29:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3818 states. [2020-10-15 02:29:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 5244 transitions. [2020-10-15 02:29:42,145 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 5244 transitions. Word has length 80 [2020-10-15 02:29:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:42,146 INFO L479 AbstractCegarLoop]: Abstraction has 3818 states and 5244 transitions. [2020-10-15 02:29:42,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:29:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 5244 transitions. [2020-10-15 02:29:42,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:29:42,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:42,147 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] [2020-10-15 02:29:42,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:29:42,148 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:42,148 INFO L82 PathProgramCache]: Analyzing trace with hash 334634305, now seen corresponding path program 1 times [2020-10-15 02:29:42,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:42,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463358348] [2020-10-15 02:29:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:42,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:42,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:42,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:42,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:42,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 02:29:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:47,438 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:29:47,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:47,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:47,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:47,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:29:47,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:29:47,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:47,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:47,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:47,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:47,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:47,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:47,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:47,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:47,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:47,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:47,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:47,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:29:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:47,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:29:47,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:29:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:47,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:47,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:47,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:47,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:29:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:47,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:47,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:47,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:47,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:47,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:47,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:29:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:47,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:47,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463358348] [2020-10-15 02:29:47,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:47,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:29:47,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927898882] [2020-10-15 02:29:47,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:29:47,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:47,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:29:47,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:29:47,685 INFO L87 Difference]: Start difference. First operand 3818 states and 5244 transitions. Second operand 10 states. [2020-10-15 02:29:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:49,484 INFO L93 Difference]: Finished difference Result 10623 states and 14700 transitions. [2020-10-15 02:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:29:49,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-15 02:29:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:49,519 INFO L225 Difference]: With dead ends: 10623 [2020-10-15 02:29:49,520 INFO L226 Difference]: Without dead ends: 6901 [2020-10-15 02:29:49,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:29:49,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6901 states. [2020-10-15 02:29:50,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6901 to 6504. [2020-10-15 02:29:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6504 states. [2020-10-15 02:29:50,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6504 states to 6504 states and 8829 transitions. [2020-10-15 02:29:50,021 INFO L78 Accepts]: Start accepts. Automaton has 6504 states and 8829 transitions. Word has length 81 [2020-10-15 02:29:50,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:50,022 INFO L479 AbstractCegarLoop]: Abstraction has 6504 states and 8829 transitions. [2020-10-15 02:29:50,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:29:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6504 states and 8829 transitions. [2020-10-15 02:29:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:29:50,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:50,025 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] [2020-10-15 02:29:50,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:29:50,026 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:50,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1089169207, now seen corresponding path program 1 times [2020-10-15 02:29:50,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:50,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312202220] [2020-10-15 02:29:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:50,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:50,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:50,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:29:55,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:29:55,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:29:55,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:55,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 02:29:55,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:29:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:55,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:55,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:55,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:55,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:55,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:29:55,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:29:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:55,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:55,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:55,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:55,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:55,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:29:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:55,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:55,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:55,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:29:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:55,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:55,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:55,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:29:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:55,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:55,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:55,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:55,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:55,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:55,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:29:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:55,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:55,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312202220] [2020-10-15 02:29:55,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:55,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:29:55,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897070334] [2020-10-15 02:29:55,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:29:55,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:55,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:29:55,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:29:55,397 INFO L87 Difference]: Start difference. First operand 6504 states and 8829 transitions. Second operand 10 states. [2020-10-15 02:29:57,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:57,387 INFO L93 Difference]: Finished difference Result 18456 states and 25235 transitions. [2020-10-15 02:29:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:29:57,388 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-15 02:29:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:57,436 INFO L225 Difference]: With dead ends: 18456 [2020-10-15 02:29:57,436 INFO L226 Difference]: Without dead ends: 12069 [2020-10-15 02:29:57,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:29:57,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12069 states. [2020-10-15 02:29:58,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12069 to 12067. [2020-10-15 02:29:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12067 states. [2020-10-15 02:29:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12067 states to 12067 states and 16221 transitions. [2020-10-15 02:29:58,208 INFO L78 Accepts]: Start accepts. Automaton has 12067 states and 16221 transitions. Word has length 81 [2020-10-15 02:29:58,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:58,208 INFO L479 AbstractCegarLoop]: Abstraction has 12067 states and 16221 transitions. [2020-10-15 02:29:58,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:29:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand 12067 states and 16221 transitions. [2020-10-15 02:29:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:29:58,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:58,210 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] [2020-10-15 02:29:58,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:29:58,210 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:58,210 INFO L82 PathProgramCache]: Analyzing trace with hash -497433087, now seen corresponding path program 1 times [2020-10-15 02:29:58,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:58,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043275217] [2020-10-15 02:29:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:58,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:58,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:58,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2009 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 02:30:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:30:00,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:00,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:00,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:00,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:00,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:00,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:30:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:30:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:30:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:00,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:00,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:00,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:00,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:00,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:00,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:00,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:00,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:00,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:00,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:00,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:00,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043275217] [2020-10-15 02:30:00,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:00,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:30:00,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439643569] [2020-10-15 02:30:00,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:30:00,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:00,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:30:00,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:30:00,509 INFO L87 Difference]: Start difference. First operand 12067 states and 16221 transitions. Second operand 10 states. [2020-10-15 02:30:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:02,917 INFO L93 Difference]: Finished difference Result 34563 states and 46629 transitions. [2020-10-15 02:30:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:02,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-15 02:30:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:03,010 INFO L225 Difference]: With dead ends: 34563 [2020-10-15 02:30:03,010 INFO L226 Difference]: Without dead ends: 22565 [2020-10-15 02:30:03,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:30:03,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22565 states. [2020-10-15 02:30:04,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22565 to 22563. [2020-10-15 02:30:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22563 states. [2020-10-15 02:30:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22563 states to 22563 states and 29848 transitions. [2020-10-15 02:30:04,575 INFO L78 Accepts]: Start accepts. Automaton has 22563 states and 29848 transitions. Word has length 81 [2020-10-15 02:30:04,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:04,575 INFO L479 AbstractCegarLoop]: Abstraction has 22563 states and 29848 transitions. [2020-10-15 02:30:04,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:30:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 22563 states and 29848 transitions. [2020-10-15 02:30:04,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:30:04,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:04,577 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] [2020-10-15 02:30:04,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:30:04,577 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:04,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:04,577 INFO L82 PathProgramCache]: Analyzing trace with hash -479364277, now seen corresponding path program 1 times [2020-10-15 02:30:04,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:04,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473088903] [2020-10-15 02:30:04,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:04,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:04,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:05,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:30:05,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:30:05,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:05,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:05,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:05,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:05,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:30:05,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:05,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:30:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:05,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:05,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:05,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:05,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:05,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:30:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:30:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:05,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:05,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:05,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:05,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:05,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:05,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473088903] [2020-10-15 02:30:05,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:05,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:30:05,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439238168] [2020-10-15 02:30:05,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:30:05,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:05,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:30:05,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:30:05,418 INFO L87 Difference]: Start difference. First operand 22563 states and 29848 transitions. Second operand 10 states. [2020-10-15 02:30:09,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:09,073 INFO L93 Difference]: Finished difference Result 53375 states and 71230 transitions. [2020-10-15 02:30:09,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:09,073 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-15 02:30:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:09,163 INFO L225 Difference]: With dead ends: 53375 [2020-10-15 02:30:09,163 INFO L226 Difference]: Without dead ends: 34594 [2020-10-15 02:30:09,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:30:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34594 states. [2020-10-15 02:30:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34594 to 34592. [2020-10-15 02:30:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34592 states. [2020-10-15 02:30:11,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34592 states to 34592 states and 45387 transitions. [2020-10-15 02:30:11,487 INFO L78 Accepts]: Start accepts. Automaton has 34592 states and 45387 transitions. Word has length 81 [2020-10-15 02:30:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:11,488 INFO L479 AbstractCegarLoop]: Abstraction has 34592 states and 45387 transitions. [2020-10-15 02:30:11,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:30:11,488 INFO L276 IsEmpty]: Start isEmpty. Operand 34592 states and 45387 transitions. [2020-10-15 02:30:11,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:30:11,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:11,489 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] [2020-10-15 02:30:11,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:30:11,489 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:11,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:11,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1389043393, now seen corresponding path program 1 times [2020-10-15 02:30:11,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:11,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669478228] [2020-10-15 02:30:11,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:30:11,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-15 02:30:11,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:30:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-15 02:30:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:11,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:11,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:11,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:11,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:11,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:11,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:11,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:11,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:11,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:30:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:30:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:30:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:11,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:11,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:11,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:11,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:30:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:11,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669478228] [2020-10-15 02:30:11,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:11,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:30:11,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539038740] [2020-10-15 02:30:11,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:30:11,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:11,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:30:11,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:30:11,980 INFO L87 Difference]: Start difference. First operand 34592 states and 45387 transitions. Second operand 13 states. [2020-10-15 02:30:12,871 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 02:30:13,016 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-15 02:30:13,149 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-15 02:30:15,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:15,549 INFO L93 Difference]: Finished difference Result 40845 states and 55420 transitions. [2020-10-15 02:30:15,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:15,550 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-10-15 02:30:15,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:15,715 INFO L225 Difference]: With dead ends: 40845 [2020-10-15 02:30:15,715 INFO L226 Difference]: Without dead ends: 40843 [2020-10-15 02:30:15,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:30:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40843 states. [2020-10-15 02:30:19,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40843 to 37472. [2020-10-15 02:30:19,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37472 states. [2020-10-15 02:30:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37472 states to 37472 states and 48243 transitions. [2020-10-15 02:30:19,147 INFO L78 Accepts]: Start accepts. Automaton has 37472 states and 48243 transitions. Word has length 81 [2020-10-15 02:30:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:19,147 INFO L479 AbstractCegarLoop]: Abstraction has 37472 states and 48243 transitions. [2020-10-15 02:30:19,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:30:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 37472 states and 48243 transitions. [2020-10-15 02:30:19,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-15 02:30:19,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:19,154 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:19,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:30:19,154 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:19,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1007896415, now seen corresponding path program 1 times [2020-10-15 02:30:19,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:19,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654171164] [2020-10-15 02:30:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:19,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:19,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:19,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:21,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:21,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:22,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 02:30:24,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:30:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:30:24,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:30:24,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:30:24,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:30:24,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:24,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:24,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:24,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:24,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:30:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,545 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-10-15 02:30:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:24,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:24,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:30:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:24,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:24,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:30:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:24,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:24,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:30:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:24,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:24,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:24,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:30:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:24,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:24,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:24,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:30:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:24,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:30:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:30:24,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:30:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-15 02:30:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:24,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:24,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-15 02:30:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:30:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:24,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:24,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:24,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:24,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:24,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:24,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:30:24,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654171164] [2020-10-15 02:30:24,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:30:24,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 02:30:24,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603913644] [2020-10-15 02:30:24,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:30:24,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:24,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:30:24,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:30:24,823 INFO L87 Difference]: Start difference. First operand 37472 states and 48243 transitions. Second operand 16 states. [2020-10-15 02:30:24,993 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-15 02:30:25,620 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-10-15 02:30:27,377 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-10-15 02:30:30,605 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:30:35,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:35,916 INFO L93 Difference]: Finished difference Result 151472 states and 197661 transitions. [2020-10-15 02:30:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-15 02:30:35,917 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 126 [2020-10-15 02:30:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:36,341 INFO L225 Difference]: With dead ends: 151472 [2020-10-15 02:30:36,341 INFO L226 Difference]: Without dead ends: 114066 [2020-10-15 02:30:36,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=659, Invalid=2881, Unknown=0, NotChecked=0, Total=3540 [2020-10-15 02:30:36,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114066 states. [2020-10-15 02:30:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114066 to 101000. [2020-10-15 02:30:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101000 states. [2020-10-15 02:30:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101000 states to 101000 states and 131374 transitions. [2020-10-15 02:30:45,835 INFO L78 Accepts]: Start accepts. Automaton has 101000 states and 131374 transitions. Word has length 126 [2020-10-15 02:30:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:45,836 INFO L479 AbstractCegarLoop]: Abstraction has 101000 states and 131374 transitions. [2020-10-15 02:30:45,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:30:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 101000 states and 131374 transitions. [2020-10-15 02:30:45,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-15 02:30:45,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:45,849 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:45,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:30:45,850 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:45,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:45,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1843834559, now seen corresponding path program 1 times [2020-10-15 02:30:45,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:45,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107101445] [2020-10-15 02:30:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:45,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:45,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:47,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:48,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:49,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:50,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:30:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:30:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-15 02:30:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:51,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:51,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:30:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:30:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:51,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:30:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:30:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:51,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:30:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:51,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:51,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:51,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:30:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:30:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:51,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:51,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:30:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:51,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:51,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:51,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-15 02:30:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-15 02:30:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:51,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:51,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:30:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:51,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:51,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:51,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:51,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:51,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:51,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:30:51,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107101445] [2020-10-15 02:30:51,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:30:51,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 02:30:51,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051496871] [2020-10-15 02:30:51,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:30:51,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:51,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:30:51,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:30:51,443 INFO L87 Difference]: Start difference. First operand 101000 states and 131374 transitions. Second operand 16 states. [2020-10-15 02:30:51,651 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-15 02:30:52,440 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-15 02:30:52,570 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-15 02:30:54,139 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2020-10-15 02:30:54,367 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-10-15 02:31:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:13,806 INFO L93 Difference]: Finished difference Result 392770 states and 512697 transitions. [2020-10-15 02:31:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-15 02:31:13,807 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 126 [2020-10-15 02:31:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:14,654 INFO L225 Difference]: With dead ends: 392770 [2020-10-15 02:31:14,654 INFO L226 Difference]: Without dead ends: 291860 [2020-10-15 02:31:14,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=544, Invalid=2318, Unknown=0, NotChecked=0, Total=2862 [2020-10-15 02:31:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291860 states. [2020-10-15 02:31:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291860 to 286734. [2020-10-15 02:31:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286734 states. [2020-10-15 02:31:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286734 states to 286734 states and 373932 transitions. [2020-10-15 02:31:43,080 INFO L78 Accepts]: Start accepts. Automaton has 286734 states and 373932 transitions. Word has length 126 [2020-10-15 02:31:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:43,081 INFO L479 AbstractCegarLoop]: Abstraction has 286734 states and 373932 transitions. [2020-10-15 02:31:43,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:31:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 286734 states and 373932 transitions. [2020-10-15 02:31:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-15 02:31:43,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:43,104 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:31:43,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:31:43,104 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:43,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:43,105 INFO L82 PathProgramCache]: Analyzing trace with hash 249549877, now seen corresponding path program 1 times [2020-10-15 02:31:43,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:43,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701427171] [2020-10-15 02:31:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 02:31:48,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:31:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:31:48,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:31:48,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:31:48,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:31:48,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:48,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:48,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:31:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:31:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:31:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:31:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:48,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:48,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:31:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:31:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:48,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:48,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:48,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:31:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:31:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:48,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:48,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:31:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:31:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:48,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:48,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:31:48,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:48,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:48,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-15 02:31:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:48,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-15 02:31:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:31:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:31:48,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:31:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 02:31:48,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701427171] [2020-10-15 02:31:48,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:31:48,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 02:31:48,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249663648] [2020-10-15 02:31:48,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 02:31:48,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:48,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 02:31:48,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:31:48,586 INFO L87 Difference]: Start difference. First operand 286734 states and 373932 transitions. Second operand 17 states. [2020-10-15 02:31:48,835 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-15 02:31:50,604 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103