/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:07:03,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:07:03,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:07:03,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:07:03,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:07:03,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:07:03,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:07:03,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:07:03,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:07:03,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:07:03,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:07:03,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:07:03,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:07:03,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:07:03,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:07:03,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:07:03,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:07:03,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:07:03,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:07:03,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:07:03,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:07:03,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:07:03,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:07:03,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:07:03,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:07:03,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:07:03,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:07:03,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:07:03,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:07:03,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:07:03,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:07:03,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:07:03,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:07:03,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:07:03,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:07:03,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:07:03,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:07:03,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:07:03,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:07:03,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:07:03,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:07:03,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:07:03,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:07:03,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:07:03,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:07:03,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:07:03,943 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:07:03,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:07:03,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:07:03,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:07:03,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:07:03,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:07:03,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:07:03,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:07:03,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:07:03,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:07:03,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:07:03,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:07:03,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:07:03,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:07:03,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:07:03,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:07:03,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:07:03,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:03,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:07:03,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:07:03,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:07:03,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:07:03,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:07:03,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:07:03,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:07:03,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:07:04,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:07:04,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:07:04,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:07:04,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:07:04,437 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:07:04,438 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-09-24 19:07:04,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dca81313/aa8649a969794dc5b22d803c262898ba/FLAG12b21eddb [2020-09-24 19:07:05,116 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:07:05,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-09-24 19:07:05,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dca81313/aa8649a969794dc5b22d803c262898ba/FLAG12b21eddb [2020-09-24 19:07:05,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dca81313/aa8649a969794dc5b22d803c262898ba [2020-09-24 19:07:05,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:07:05,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:07:05,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:05,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:07:05,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:07:05,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:05" (1/1) ... [2020-09-24 19:07:05,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336ce4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:05, skipping insertion in model container [2020-09-24 19:07:05,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:05" (1/1) ... [2020-09-24 19:07:05,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:07:05,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:07:06,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:06,047 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:07:06,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:06,177 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:07:06,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06 WrapperNode [2020-09-24 19:07:06,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:06,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:07:06,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:07:06,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:07:06,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:07:06,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:07:06,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:07:06,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:07:06,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:07:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:07:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:07:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:07:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:07:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:07:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:07:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:07:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:07:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:07:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:07:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:07:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:07:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:07:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:07:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:07:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:07:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:07:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:07:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:07:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:07:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:07:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:07:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:07:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:07:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:07:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:07:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:07:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:07:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:07:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:07:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:07:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:07:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:07:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:06,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:07:06,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:07:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:07:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:07:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:07:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:07:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:07:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:07:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:07:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:07:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:07:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:07:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:07:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:07:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:07:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:07:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:07:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:07:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:07:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:07:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:07:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:07:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:07:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:07:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:07:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:07:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:07:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:07:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:07:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:07:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:07:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:07:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:07:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:07:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:07:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:07:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:07:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:07:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:07:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:07:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:07:07,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:07:07,738 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:07:07,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:07 BoogieIcfgContainer [2020-09-24 19:07:07,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:07:07,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:07:07,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:07:07,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:07:07,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:07:05" (1/3) ... [2020-09-24 19:07:07,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7482a4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:07, skipping insertion in model container [2020-09-24 19:07:07,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06" (2/3) ... [2020-09-24 19:07:07,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7482a4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:07, skipping insertion in model container [2020-09-24 19:07:07,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:07" (3/3) ... [2020-09-24 19:07:07,758 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2020-09-24 19:07:07,770 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:07:07,784 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:07:07,803 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:07:07,833 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:07:07,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:07:07,834 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:07:07,834 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:07:07,834 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:07:07,834 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:07:07,834 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:07:07,835 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:07:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-24 19:07:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 19:07:07,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:07,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:07,883 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:07,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:07,891 INFO L82 PathProgramCache]: Analyzing trace with hash -207772039, now seen corresponding path program 1 times [2020-09-24 19:07:07,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:07,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353834706] [2020-09-24 19:07:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:09,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:07:09,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-09-24 19:07:09,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:07:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 19:07:09,703 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:09,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:09,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:09,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:09,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:09,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:09,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 19:07:09,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:09,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:09,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:09,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:09,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:09,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:09,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:09,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:09,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:10,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:10,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:10,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:10,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:10,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:10,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:07:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:10,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:10,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:10,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353834706] [2020-09-24 19:07:10,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:10,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:07:10,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463311379] [2020-09-24 19:07:10,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:07:10,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:10,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:07:10,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:10,120 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 4 states. [2020-09-24 19:07:11,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:11,527 INFO L93 Difference]: Finished difference Result 512 states and 603 transitions. [2020-09-24 19:07:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:07:11,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 19:07:11,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:11,550 INFO L225 Difference]: With dead ends: 512 [2020-09-24 19:07:11,550 INFO L226 Difference]: Without dead ends: 323 [2020-09-24 19:07:11,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-24 19:07:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 274. [2020-09-24 19:07:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-24 19:07:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 297 transitions. [2020-09-24 19:07:11,670 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 297 transitions. Word has length 148 [2020-09-24 19:07:11,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:11,671 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 297 transitions. [2020-09-24 19:07:11,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:07:11,671 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 297 transitions. [2020-09-24 19:07:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 19:07:11,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:11,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:11,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:07:11,676 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:11,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:11,677 INFO L82 PathProgramCache]: Analyzing trace with hash -617336203, now seen corresponding path program 1 times [2020-09-24 19:07:11,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:11,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551008236] [2020-09-24 19:07:11,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 19:07:12,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 19:07:12,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:07:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,092 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:13,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:13,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:07:13,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:13,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:13,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:13,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:13,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:13,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:13,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:13,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:13,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:13,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:13,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:07:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:13,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:13,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:13,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:13,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:13,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:13,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:13,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:13,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:07:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:13,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551008236] [2020-09-24 19:07:13,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:13,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:07:13,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918567917] [2020-09-24 19:07:13,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:07:13,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:13,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:07:13,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:13,354 INFO L87 Difference]: Start difference. First operand 274 states and 297 transitions. Second operand 5 states. [2020-09-24 19:07:14,087 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:15,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:15,132 INFO L93 Difference]: Finished difference Result 437 states and 494 transitions. [2020-09-24 19:07:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:07:15,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 19:07:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:15,138 INFO L225 Difference]: With dead ends: 437 [2020-09-24 19:07:15,138 INFO L226 Difference]: Without dead ends: 312 [2020-09-24 19:07:15,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-24 19:07:15,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 264. [2020-09-24 19:07:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 19:07:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 284 transitions. [2020-09-24 19:07:15,189 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 284 transitions. Word has length 149 [2020-09-24 19:07:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:15,190 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 284 transitions. [2020-09-24 19:07:15,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:07:15,190 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 284 transitions. [2020-09-24 19:07:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 19:07:15,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:15,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:15,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:07:15,193 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:15,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:15,194 INFO L82 PathProgramCache]: Analyzing trace with hash 335251812, now seen corresponding path program 1 times [2020-09-24 19:07:15,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:15,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046698334] [2020-09-24 19:07:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 19:07:16,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-24 19:07:16,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:07:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,634 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:16,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:16,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 19:07:16,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:16,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:16,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:16,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:16,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:16,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:16,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:16,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:16,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:07:16,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:07:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:16,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:07:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:16,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:16,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:16,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:16,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:16,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:16,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046698334] [2020-09-24 19:07:16,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:16,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:07:16,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588697753] [2020-09-24 19:07:16,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:07:16,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:16,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:07:16,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:07:16,962 INFO L87 Difference]: Start difference. First operand 264 states and 284 transitions. Second operand 6 states. [2020-09-24 19:07:17,665 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:18,767 INFO L93 Difference]: Finished difference Result 484 states and 559 transitions. [2020-09-24 19:07:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:07:18,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 19:07:18,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:18,774 INFO L225 Difference]: With dead ends: 484 [2020-09-24 19:07:18,774 INFO L226 Difference]: Without dead ends: 335 [2020-09-24 19:07:18,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-24 19:07:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 264. [2020-09-24 19:07:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 19:07:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 283 transitions. [2020-09-24 19:07:18,852 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 283 transitions. Word has length 162 [2020-09-24 19:07:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:18,853 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 283 transitions. [2020-09-24 19:07:18,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:07:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 283 transitions. [2020-09-24 19:07:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 19:07:18,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:18,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:18,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:07:18,858 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:18,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:18,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1327937855, now seen corresponding path program 1 times [2020-09-24 19:07:18,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:18,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374381824] [2020-09-24 19:07:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:19,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:19,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:19,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-24 19:07:19,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:19,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-24 19:07:19,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-24 19:07:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,354 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:20,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:20,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 19:07:20,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:20,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:20,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:20,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:20,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:20,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:20,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:20,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:20,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:07:20,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:07:20,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:07:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:07:20,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:20,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:07:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:07:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:20,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:20,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 19:07:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:20,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:20,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 19:07:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:20,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:20,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374381824] [2020-09-24 19:07:20,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:20,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:07:20,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177752107] [2020-09-24 19:07:20,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:07:20,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:20,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:07:20,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:07:20,863 INFO L87 Difference]: Start difference. First operand 264 states and 283 transitions. Second operand 9 states. [2020-09-24 19:07:21,482 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:23,093 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:24,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:24,171 INFO L93 Difference]: Finished difference Result 672 states and 802 transitions. [2020-09-24 19:07:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 19:07:24,172 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2020-09-24 19:07:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:24,176 INFO L225 Difference]: With dead ends: 672 [2020-09-24 19:07:24,176 INFO L226 Difference]: Without dead ends: 523 [2020-09-24 19:07:24,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-24 19:07:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-24 19:07:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 382. [2020-09-24 19:07:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-24 19:07:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 412 transitions. [2020-09-24 19:07:24,234 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 412 transitions. Word has length 175 [2020-09-24 19:07:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:24,235 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 412 transitions. [2020-09-24 19:07:24,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:07:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 412 transitions. [2020-09-24 19:07:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:07:24,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:24,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:24,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:07:24,238 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:24,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:24,239 INFO L82 PathProgramCache]: Analyzing trace with hash 552835031, now seen corresponding path program 1 times [2020-09-24 19:07:24,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:24,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524801722] [2020-09-24 19:07:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:25,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:25,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:25,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:07:25,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1118 [2020-09-24 19:07:25,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:07:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 19:07:25,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:07:25,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:25,824 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:25,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:25,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:25,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:25,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:25,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 19:07:25,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:25,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:25,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:25,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:25,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:25,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:26,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:26,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:26,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:26,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:26,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:26,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:26,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:26,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:26,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:26,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:26,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:26,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:26,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:07:26,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 19:07:26,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:26,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:26,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:26,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:07:26,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:26,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:26,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:07:26,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:07:26,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:26,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:26,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:26,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:26,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:26,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:26,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 19:07:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:26,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:26,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 19:07:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:26,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:26,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:26,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:26,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:26,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:26,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524801722] [2020-09-24 19:07:26,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:26,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:26,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359029468] [2020-09-24 19:07:26,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:26,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:26,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:26,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:26,434 INFO L87 Difference]: Start difference. First operand 382 states and 412 transitions. Second operand 11 states. [2020-09-24 19:07:27,005 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:28,859 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:29,167 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:29,483 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:29,768 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:30,152 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:30,482 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:30,784 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:31,115 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:32,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:32,496 INFO L93 Difference]: Finished difference Result 788 states and 926 transitions. [2020-09-24 19:07:32,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 19:07:32,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 19:07:32,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:32,502 INFO L225 Difference]: With dead ends: 788 [2020-09-24 19:07:32,502 INFO L226 Difference]: Without dead ends: 521 [2020-09-24 19:07:32,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-24 19:07:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-24 19:07:32,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 380. [2020-09-24 19:07:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 19:07:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 408 transitions. [2020-09-24 19:07:32,555 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 408 transitions. Word has length 199 [2020-09-24 19:07:32,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:32,556 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 408 transitions. [2020-09-24 19:07:32,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 408 transitions. [2020-09-24 19:07:32,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:07:32,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:32,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:32,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:07:32,560 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:32,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:32,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1360836724, now seen corresponding path program 1 times [2020-09-24 19:07:32,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:32,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912926663] [2020-09-24 19:07:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:32,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:33,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 19:07:33,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-24 19:07:33,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 19:07:33,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:33,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:07:34,036 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:34,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:07:34,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:34,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:34,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:34,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:34,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:34,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:34,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:34,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:34,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:34,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:34,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:34,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:34,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:34,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:34,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 19:07:34,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:07:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:34,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:34,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:34,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 19:07:34,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:34,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:07:34,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:34,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:34,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:07:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:07:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:34,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:34,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:34,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:07:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:34,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:34,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:07:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:34,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:34,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:34,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:34,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:34,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:34,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:34,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912926663] [2020-09-24 19:07:34,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:34,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:34,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018824797] [2020-09-24 19:07:34,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:34,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:34,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:34,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:34,653 INFO L87 Difference]: Start difference. First operand 380 states and 408 transitions. Second operand 11 states. [2020-09-24 19:07:36,125 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:36,498 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:36,825 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 19:07:37,064 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:37,382 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:37,674 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:38,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:38,938 INFO L93 Difference]: Finished difference Result 788 states and 920 transitions. [2020-09-24 19:07:38,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:07:38,939 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2020-09-24 19:07:38,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:38,942 INFO L225 Difference]: With dead ends: 788 [2020-09-24 19:07:38,943 INFO L226 Difference]: Without dead ends: 523 [2020-09-24 19:07:38,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:07:38,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-24 19:07:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 388. [2020-09-24 19:07:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-09-24 19:07:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 416 transitions. [2020-09-24 19:07:39,001 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 416 transitions. Word has length 200 [2020-09-24 19:07:39,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:39,002 INFO L479 AbstractCegarLoop]: Abstraction has 388 states and 416 transitions. [2020-09-24 19:07:39,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:39,002 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 416 transitions. [2020-09-24 19:07:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:07:39,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:39,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:39,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:07:39,006 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:39,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:39,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1235632340, now seen corresponding path program 1 times [2020-09-24 19:07:39,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:39,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506323302] [2020-09-24 19:07:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:39,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:39,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 19:07:40,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:07:40,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 19:07:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:40,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:40,328 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:40,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 19:07:40,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:40,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:40,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:40,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:40,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:40,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:40,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:40,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:40,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:40,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:40,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:40,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:40,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 19:07:40,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:07:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:40,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:40,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 19:07:40,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:07:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:40,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:07:40,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:07:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:40,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:40,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:40,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:40,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:40,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:40,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:40,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:07:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:40,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:40,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:07:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:40,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:40,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:40,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:40,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:40,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:40,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:40,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506323302] [2020-09-24 19:07:40,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:40,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:07:40,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789856808] [2020-09-24 19:07:40,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:07:40,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:40,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:07:40,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:07:40,844 INFO L87 Difference]: Start difference. First operand 388 states and 416 transitions. Second operand 10 states. [2020-09-24 19:07:41,971 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:42,274 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:42,577 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:42,881 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:43,163 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:44,387 INFO L93 Difference]: Finished difference Result 802 states and 946 transitions. [2020-09-24 19:07:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:07:44,387 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-09-24 19:07:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:44,391 INFO L225 Difference]: With dead ends: 802 [2020-09-24 19:07:44,391 INFO L226 Difference]: Without dead ends: 529 [2020-09-24 19:07:44,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:07:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-09-24 19:07:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 394. [2020-09-24 19:07:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-24 19:07:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 422 transitions. [2020-09-24 19:07:44,446 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 422 transitions. Word has length 200 [2020-09-24 19:07:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:44,446 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 422 transitions. [2020-09-24 19:07:44,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:07:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 422 transitions. [2020-09-24 19:07:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:07:44,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:44,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:44,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:07:44,450 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:44,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:44,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1926126481, now seen corresponding path program 1 times [2020-09-24 19:07:44,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:44,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925931596] [2020-09-24 19:07:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 19:07:45,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-24 19:07:45,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:07:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 19:07:45,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 19:07:45,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:45,847 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:45,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:07:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:45,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:45,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:45,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:45,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:45,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:45,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:45,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:46,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:46,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:46,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:46,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:46,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:07:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:46,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 19:07:46,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:07:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:46,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:46,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:46,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:46,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:46,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:46,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:46,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:07:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:46,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:46,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:07:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:46,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925931596] [2020-09-24 19:07:46,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:46,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:07:46,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187953298] [2020-09-24 19:07:46,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:07:46,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:46,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:07:46,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:46,200 INFO L87 Difference]: Start difference. First operand 394 states and 422 transitions. Second operand 7 states. [2020-09-24 19:07:46,737 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:49,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:49,222 INFO L93 Difference]: Finished difference Result 882 states and 1068 transitions. [2020-09-24 19:07:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:07:49,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-09-24 19:07:49,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:49,229 INFO L225 Difference]: With dead ends: 882 [2020-09-24 19:07:49,229 INFO L226 Difference]: Without dead ends: 879 [2020-09-24 19:07:49,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:07:49,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-09-24 19:07:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 636. [2020-09-24 19:07:49,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-09-24 19:07:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 687 transitions. [2020-09-24 19:07:49,323 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 687 transitions. Word has length 200 [2020-09-24 19:07:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:49,324 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 687 transitions. [2020-09-24 19:07:49,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:07:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 687 transitions. [2020-09-24 19:07:49,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-09-24 19:07:49,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:49,332 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:49,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:07:49,332 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:49,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:49,333 INFO L82 PathProgramCache]: Analyzing trace with hash -992678129, now seen corresponding path program 1 times [2020-09-24 19:07:49,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:49,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550902017] [2020-09-24 19:07:49,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-09-24 19:07:50,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:07:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-09-24 19:07:50,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-24 19:07:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 19:07:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,710 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:50,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:50,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 19:07:50,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:50,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:50,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:50,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:50,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:50,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:50,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:50,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:50,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:07:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 19:07:50,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:07:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 19:07:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:51,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:07:51,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 19:07:51,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:51,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:07:51,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:07:51,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:51,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:51,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:51,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:51,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:51,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:07:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 19:07:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 19:07:51,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:07:51,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 19:07:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:51,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:07:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:51,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:51,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:07:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:51,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:51,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:51,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 19:07:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:51,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:07:51,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 19:07:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:51,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:51,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:51,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:51,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:51,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:51,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:51,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:51,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-24 19:07:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-09-24 19:07:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:51,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:51,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 32 proven. 7 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-24 19:07:51,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550902017] [2020-09-24 19:07:51,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:07:51,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:07:51,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983108801] [2020-09-24 19:07:51,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:07:51,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:51,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:07:51,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:07:51,394 INFO L87 Difference]: Start difference. First operand 636 states and 687 transitions. Second operand 8 states. [2020-09-24 19:07:52,665 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189