/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --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_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:58:37,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:58:37,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:58:37,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:58:37,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:58:37,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:58:37,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:58:37,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:58:37,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:58:37,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:58:37,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:58:37,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:58:37,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:58:37,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:58:37,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:58:37,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:58:37,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:58:37,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:58:37,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:58:37,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:58:37,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:58:37,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:58:37,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:58:37,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:58:37,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:58:37,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:58:37,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:58:37,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:58:37,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:58:37,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:58:37,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:58:37,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:58:37,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:58:37,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:58:37,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:58:37,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:58:37,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:58:37,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:58:37,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:58:37,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:58:37,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:58:37,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:58:37,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:58:37,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:58:37,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:58:37,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:58:37,878 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:58:37,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:58:37,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:58:37,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:58:37,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:58:37,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:58:37,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:58:37,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:58:37,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:58:37,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:58:37,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:58:37,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:58:37,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:58:37,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:58:37,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:58:37,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:58:37,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:58:37,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:58:37,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:58:37,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:58:37,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:58:37,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:58:37,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:58:37,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:58:37,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:58:37,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:58:38,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:58:38,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:58:38,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:58:38,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:58:38,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:58:38,387 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-09-25 01:58:38,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6614280f4/35b5b64fdd02430981e8af3f9e170452/FLAG95a44d80e [2020-09-25 01:58:39,081 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:58:39,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-09-25 01:58:39,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6614280f4/35b5b64fdd02430981e8af3f9e170452/FLAG95a44d80e [2020-09-25 01:58:39,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6614280f4/35b5b64fdd02430981e8af3f9e170452 [2020-09-25 01:58:39,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:58:39,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:58:39,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:58:39,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:58:39,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:58:39,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:58:39" (1/1) ... [2020-09-25 01:58:39,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:39, skipping insertion in model container [2020-09-25 01:58:39,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:58:39" (1/1) ... [2020-09-25 01:58:39,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:58:39,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:58:39,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:58:39,903 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:58:40,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:58:40,206 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:58:40,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40 WrapperNode [2020-09-25 01:58:40,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:58:40,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:58:40,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:58:40,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:58:40,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... [2020-09-25 01:58:40,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:58:40,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:58:40,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:58:40,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:58:40,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:58:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:58:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:58:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:58:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:58:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:58:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:58:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:58:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:58:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:58:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:58:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:58:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:58:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:58:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:58:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:58:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:58:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:58:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:58:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:58:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:58:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:58:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:58:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:58:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:58:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:58:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:58:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:58:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:58:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:58:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:58:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:58:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:58:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:58:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:58:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:58:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:58:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:58:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:58:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:58:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:58:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:58:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:58:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:58:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:58:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:58:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:58:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:58:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:58:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:58:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:58:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:58:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:58:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:58:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:58:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:58:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:58:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:58:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:58:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:58:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:58:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:58:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:58:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:58:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:58:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:58:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:58:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:58:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:58:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:58:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:58:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:58:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:58:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:58:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:58:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:58:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:58:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:58:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:58:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:58:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:58:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:58:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:58:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:58:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:58:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:58:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:58:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:58:41,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:58:41,876 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:58:41,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:58:41 BoogieIcfgContainer [2020-09-25 01:58:41,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:58:41,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:58:41,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:58:41,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:58:41,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:58:39" (1/3) ... [2020-09-25 01:58:41,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e25b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:58:41, skipping insertion in model container [2020-09-25 01:58:41,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:40" (2/3) ... [2020-09-25 01:58:41,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e25b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:58:41, skipping insertion in model container [2020-09-25 01:58:41,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:58:41" (3/3) ... [2020-09-25 01:58:41,894 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2020-09-25 01:58:41,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:58:41,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:58:41,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:58:41,969 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:58:41,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:58:41,970 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:58:41,970 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:58:41,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:58:41,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:58:41,970 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:58:41,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:58:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-09-25 01:58:42,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:58:42,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:42,025 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:42,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:42,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:42,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2061936998, now seen corresponding path program 1 times [2020-09-25 01:58:42,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:42,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923370467] [2020-09-25 01:58:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:42,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:42,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:44,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:47,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:47,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:58:47,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:58:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 01:58:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:58:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:47,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:58:47,973 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:48,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 01:58:48,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:48,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:48,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:48,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:48,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:48,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:48,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:48,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:48,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:58:48,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:48,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:48,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:48,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:48,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:48,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:48,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:58:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:48,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:48,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:48,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:48,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:48,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:48,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:48,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:58:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:48,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:48,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:48,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:58:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:48,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:48,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:48,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:48,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:58:48,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:48,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:48,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923370467] [2020-09-25 01:58:48,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:48,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:58:48,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281027032] [2020-09-25 01:58:48,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:58:48,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:48,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:58:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:58:48,434 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 4 states. [2020-09-25 01:58:50,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:50,209 INFO L93 Difference]: Finished difference Result 604 states and 711 transitions. [2020-09-25 01:58:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:58:50,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:58:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:50,250 INFO L225 Difference]: With dead ends: 604 [2020-09-25 01:58:50,251 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 01:58:50,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:58:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 01:58:50,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 318. [2020-09-25 01:58:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-09-25 01:58:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 350 transitions. [2020-09-25 01:58:50,469 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 350 transitions. Word has length 160 [2020-09-25 01:58:50,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:50,472 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 350 transitions. [2020-09-25 01:58:50,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:58:50,473 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 350 transitions. [2020-09-25 01:58:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:58:50,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:50,488 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:50,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:58:50,489 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:50,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:50,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1396350800, now seen corresponding path program 1 times [2020-09-25 01:58:50,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:50,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902796288] [2020-09-25 01:58:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:50,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:50,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:53,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:58:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:58:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 01:58:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:58:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,955 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:55,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:56,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 01:58:56,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:56,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:56,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:56,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:56,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:56,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:56,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:56,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:56,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:58:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:56,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:56,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:56,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:56,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:58:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:56,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:56,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:56,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:58:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:56,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:56,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:56,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:56,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:56,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:56,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:56,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:56,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:56,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:56,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:56,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902796288] [2020-09-25 01:58:56,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:56,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:58:56,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098398690] [2020-09-25 01:58:56,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:58:56,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:56,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:58:56,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:58:56,200 INFO L87 Difference]: Start difference. First operand 318 states and 350 transitions. Second operand 5 states. [2020-09-25 01:58:56,880 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:58,377 INFO L93 Difference]: Finished difference Result 523 states and 595 transitions. [2020-09-25 01:58:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:58:58,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:58:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:58,383 INFO L225 Difference]: With dead ends: 523 [2020-09-25 01:58:58,383 INFO L226 Difference]: Without dead ends: 360 [2020-09-25 01:58:58,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-25 01:58:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 308. [2020-09-25 01:58:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-25 01:58:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 337 transitions. [2020-09-25 01:58:58,450 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 337 transitions. Word has length 161 [2020-09-25 01:58:58,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:58,450 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 337 transitions. [2020-09-25 01:58:58,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:58:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 337 transitions. [2020-09-25 01:58:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:58:58,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:58,453 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:58,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:58:58,454 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:58,454 INFO L82 PathProgramCache]: Analyzing trace with hash -877752548, now seen corresponding path program 1 times [2020-09-25 01:58:58,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:58,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038052284] [2020-09-25 01:58:58,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:58,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:58,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:00,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:03,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:03,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 01:59:03,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:59:03,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 01:59:03,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:59:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:59:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 01:59:03,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:03,870 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:59:03,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:03,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:03,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:59:03,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 01:59:03,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:59:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:59:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:04,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:59:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:04,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:59:04,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:59:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:59:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:59:04,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:59:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:59:04,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:59:04,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:59:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:59:04,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:59:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:59:04,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:59:04,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:59:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:59:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:04,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:04,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:59:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:04,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:59:04,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:04,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 01:59:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:04,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:04,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:04,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:04,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:04,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:59:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:04,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:59:04,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038052284] [2020-09-25 01:59:04,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:59:04,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:59:04,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392103749] [2020-09-25 01:59:04,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:59:04,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:59:04,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:59:04,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:59:04,219 INFO L87 Difference]: Start difference. First operand 308 states and 337 transitions. Second operand 6 states. [2020-09-25 01:59:04,944 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:59:07,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:59:07,899 INFO L93 Difference]: Finished difference Result 780 states and 907 transitions. [2020-09-25 01:59:07,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:59:07,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 01:59:07,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:59:07,905 INFO L225 Difference]: With dead ends: 780 [2020-09-25 01:59:07,906 INFO L226 Difference]: Without dead ends: 587 [2020-09-25 01:59:07,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:59:07,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-09-25 01:59:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 491. [2020-09-25 01:59:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 01:59:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 550 transitions. [2020-09-25 01:59:07,984 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 550 transitions. Word has length 174 [2020-09-25 01:59:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:59:07,985 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 550 transitions. [2020-09-25 01:59:07,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:59:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 550 transitions. [2020-09-25 01:59:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 01:59:07,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:59:07,989 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:59:07,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:59:07,989 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:59:07,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:59:07,990 INFO L82 PathProgramCache]: Analyzing trace with hash -827236399, now seen corresponding path program 1 times [2020-09-25 01:59:07,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:59:07,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886830568] [2020-09-25 01:59:07,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:59:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:08,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:08,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:10,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 01:59:13,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:59:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 01:59:13,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:59:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 01:59:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:59:13,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,407 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:59:13,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:59:13,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 01:59:13,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:59:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:13,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:59:13,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:59:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:13,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:13,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:59:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:13,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:59:13,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:59:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:13,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:59:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:59:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:59:13,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:13,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 01:59:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:59:13,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:13,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:59:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:59:13,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:13,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:13,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:13,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:13,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 01:59:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:13,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:59:13,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:59:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:59:13,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 01:59:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:13,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:13,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:13,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:13,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:13,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:59:13,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:59:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:59:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:13,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:59:13,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886830568] [2020-09-25 01:59:13,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:59:13,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:59:13,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617757109] [2020-09-25 01:59:13,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:59:13,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:59:13,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:59:13,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:59:13,742 INFO L87 Difference]: Start difference. First operand 491 states and 550 transitions. Second operand 10 states. [2020-09-25 01:59:14,279 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:59:15,345 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:59:15,686 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:59:17,207 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:59:17,514 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:59:17,888 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:59:18,618 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:59:18,958 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 01:59:19,288 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:59:20,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:59:20,329 INFO L93 Difference]: Finished difference Result 1184 states and 1411 transitions. [2020-09-25 01:59:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 01:59:20,330 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 01:59:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:59:20,336 INFO L225 Difference]: With dead ends: 1184 [2020-09-25 01:59:20,336 INFO L226 Difference]: Without dead ends: 808 [2020-09-25 01:59:20,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 01:59:20,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-09-25 01:59:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 721. [2020-09-25 01:59:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2020-09-25 01:59:20,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 810 transitions. [2020-09-25 01:59:20,438 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 810 transitions. Word has length 179 [2020-09-25 01:59:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:59:20,438 INFO L479 AbstractCegarLoop]: Abstraction has 721 states and 810 transitions. [2020-09-25 01:59:20,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:59:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 810 transitions. [2020-09-25 01:59:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 01:59:20,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:59:20,442 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:59:20,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:59:20,443 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:59:20,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:59:20,443 INFO L82 PathProgramCache]: Analyzing trace with hash -670557693, now seen corresponding path program 1 times [2020-09-25 01:59:20,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:59:20,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782908930] [2020-09-25 01:59:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:59:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-09-25 01:59:21,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-09-25 01:59:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:59:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-09-25 01:59:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:59:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,678 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:59:21,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:59:21,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:59:21,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:59:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:21,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:21,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:59:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:21,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:59:21,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:59:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:21,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:59:21,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:59:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:59:21,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:59:21,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:59:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:59:21,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:59:21,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:59:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:59:21,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:21,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:59:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:59:21,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:59:21,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:21,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:21,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:21,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:21,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:21,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:59:21,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:59:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:59:22,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 01:59:22,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:59:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:59:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:59:22,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:59:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:59:22,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 01:59:22,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:59:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:59:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:59:22,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:59:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:59:22,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 01:59:22,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:59:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:59:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:59:22,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:59:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:59:22,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 01:59:22,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:59:22,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:59:22,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:59:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:59:22,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:59:22,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:59:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:59:22,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:59:22,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:59:22,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:22,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:59:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:59:22,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:59:22,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:59:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:22,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:59:22,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:59:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:59:22,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:59:22,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-25 01:59:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:22,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:59:22,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:59:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 01:59:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:22,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:22,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:22,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:59:22,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:59:22,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:59:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:59:22,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782908930] [2020-09-25 01:59:22,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:59:22,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:59:22,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937152005] [2020-09-25 01:59:22,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:59:22,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:59:22,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:59:22,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:59:22,511 INFO L87 Difference]: Start difference. First operand 721 states and 810 transitions. Second operand 11 states. [2020-09-25 01:59:24,311 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:59:24,617 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:59:24,943 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:59:25,275 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:59:25,595 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:59:25,907 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:59:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:59:27,490 INFO L93 Difference]: Finished difference Result 1516 states and 1828 transitions. [2020-09-25 01:59:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 01:59:27,490 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-09-25 01:59:27,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:59:27,501 INFO L225 Difference]: With dead ends: 1516 [2020-09-25 01:59:27,501 INFO L226 Difference]: Without dead ends: 910 [2020-09-25 01:59:27,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:59:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-09-25 01:59:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 740. [2020-09-25 01:59:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-09-25 01:59:27,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 830 transitions. [2020-09-25 01:59:27,637 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 830 transitions. Word has length 239 [2020-09-25 01:59:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:59:27,638 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 830 transitions. [2020-09-25 01:59:27,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:59:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 830 transitions. [2020-09-25 01:59:27,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 01:59:27,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:59:27,643 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:59:27,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:59:27,643 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:59:27,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:59:27,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1083605603, now seen corresponding path program 1 times [2020-09-25 01:59:27,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:59:27,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083554224] [2020-09-25 01:59:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:59:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:27,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking...