/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:09:52,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:09:52,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:09:52,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:09:52,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:09:52,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:09:52,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:09:52,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:09:52,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:09:52,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:09:52,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:09:52,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:09:52,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:09:52,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:09:52,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:09:52,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:09:52,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:09:52,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:09:52,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:09:52,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:09:52,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:09:52,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:09:52,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:09:52,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:09:52,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:09:52,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:09:52,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:09:52,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:09:52,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:09:52,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:09:52,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:09:52,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:09:52,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:09:52,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:09:52,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:09:52,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:09:52,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:09:52,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:09:52,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:09:52,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:09:52,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:09:52,384 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 [2020-09-21 12:09:52,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:09:52,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:09:52,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:09:52,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:09:52,411 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:09:52,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:09:52,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:09:52,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:09:52,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:09:52,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:09:52,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:09:52,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:09:52,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:09:52,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:09:52,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:09:52,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:09:52,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:09:52,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:09:52,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:09:52,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:09:52,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:09:52,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:09:52,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:09:52,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:09:52,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:09:52,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:09:52,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:09:52,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:09:52,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:09:52,416 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:09:52,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:09:52,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:09:52,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:09:52,876 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:09:52,877 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:09:52,878 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-21 12:09:52,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d991ae0fc/b17cfb4d0a3948f78242c70c1b5b68af/FLAG1b9b7eff6 [2020-09-21 12:09:53,527 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:09:53,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-21 12:09:53,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d991ae0fc/b17cfb4d0a3948f78242c70c1b5b68af/FLAG1b9b7eff6 [2020-09-21 12:09:53,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d991ae0fc/b17cfb4d0a3948f78242c70c1b5b68af [2020-09-21 12:09:53,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:09:53,826 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:09:53,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:09:53,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:09:53,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:09:53,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:09:53" (1/1) ... [2020-09-21 12:09:53,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:53, skipping insertion in model container [2020-09-21 12:09:53,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:09:53" (1/1) ... [2020-09-21 12:09:53,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:09:53,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:09:54,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:09:54,332 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:09:54,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:09:54,595 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:09:54,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54 WrapperNode [2020-09-21 12:09:54,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:09:54,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:09:54,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:09:54,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:09:54,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (1/1) ... [2020-09-21 12:09:54,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:09:54,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:09:54,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:09:54,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:09:54,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (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 [2020-09-21 12:09:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:09:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:09:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:09:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:09:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:09:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:09:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:09:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:09:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:09:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:09:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:09:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:09:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:09:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:09:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:09:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:09:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:09:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:09:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:09:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:09:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:09:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:09:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:09:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:09:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:09:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:09:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:09:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:09:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:09:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:09:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:09:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:09:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:09:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:09:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:09:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:09:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:09:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:09:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:09:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:09:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:09:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:09:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:09:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:09:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:09:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:09:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:09:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:09:57,911 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:09:57,911 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:09:57,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:09:57 BoogieIcfgContainer [2020-09-21 12:09:57,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:09:57,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:09:57,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:09:57,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:09:57,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:09:53" (1/3) ... [2020-09-21 12:09:57,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d8ee46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:09:57, skipping insertion in model container [2020-09-21 12:09:57,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:54" (2/3) ... [2020-09-21 12:09:57,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d8ee46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:09:57, skipping insertion in model container [2020-09-21 12:09:57,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:09:57" (3/3) ... [2020-09-21 12:09:57,927 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-21 12:09:57,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:09:57,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:09:57,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:09:58,000 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:09:58,000 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:09:58,000 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:09:58,001 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:09:58,001 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:09:58,001 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:09:58,001 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:09:58,001 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:09:58,026 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-09-21 12:09:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:09:58,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:58,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:09:58,039 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:58,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1698741088, now seen corresponding path program 1 times [2020-09-21 12:09:58,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:58,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243580082] [2020-09-21 12:09:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:09:59,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:09:59,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-21 12:09:59,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:09:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-21 12:09:59,825 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:09:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-21 12:09:59,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:59,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:59,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:59,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:59,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:59,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:59,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:59,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:59,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:59,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:09:59,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:00,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:00,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:00,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:00,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:00,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:00,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:00,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:00,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:10:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:00,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:00,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:00,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:00,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:00,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:00,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:00,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:00,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:00,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:00,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:00,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243580082] [2020-09-21 12:10:00,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:00,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:10:00,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499722063] [2020-09-21 12:10:00,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:10:00,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:00,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:10:00,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:10:00,093 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 4 states. [2020-09-21 12:10:01,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:01,307 INFO L93 Difference]: Finished difference Result 296 states and 387 transitions. [2020-09-21 12:10:01,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:10:01,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:10:01,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:01,333 INFO L225 Difference]: With dead ends: 296 [2020-09-21 12:10:01,334 INFO L226 Difference]: Without dead ends: 165 [2020-09-21 12:10:01,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:10:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-21 12:10:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 132. [2020-09-21 12:10:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-21 12:10:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2020-09-21 12:10:01,443 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 51 [2020-09-21 12:10:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:01,444 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2020-09-21 12:10:01,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:10:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2020-09-21 12:10:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:10:01,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:01,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:01,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:10:01,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:01,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:01,449 INFO L82 PathProgramCache]: Analyzing trace with hash 160126664, now seen corresponding path program 1 times [2020-09-21 12:10:01,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:01,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465559812] [2020-09-21 12:10:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:02,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:02,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:10:02,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-09-21 12:10:02,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:10:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:02,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:02,942 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:03,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 12:10:03,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:03,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:03,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:03,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:03,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:03,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:03,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:03,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:03,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:03,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:03,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:03,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:03,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:03,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:03,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:10:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:03,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:03,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:03,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465559812] [2020-09-21 12:10:03,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:03,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:03,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632642858] [2020-09-21 12:10:03,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:03,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:03,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:03,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:03,185 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 5 states. [2020-09-21 12:10:04,031 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:04,932 INFO L93 Difference]: Finished difference Result 237 states and 294 transitions. [2020-09-21 12:10:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:10:04,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 12:10:04,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:04,939 INFO L225 Difference]: With dead ends: 237 [2020-09-21 12:10:04,940 INFO L226 Difference]: Without dead ends: 155 [2020-09-21 12:10:04,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:04,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-21 12:10:04,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2020-09-21 12:10:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-21 12:10:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2020-09-21 12:10:04,983 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 52 [2020-09-21 12:10:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:04,983 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2020-09-21 12:10:04,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2020-09-21 12:10:04,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:10:04,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:04,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:04,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:10:04,986 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:04,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:04,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1051645430, now seen corresponding path program 1 times [2020-09-21 12:10:04,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:04,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623978693] [2020-09-21 12:10:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:05,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:10:06,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:06,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-21 12:10:06,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 12:10:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,439 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:06,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:06,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-21 12:10:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:06,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:06,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:06,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:06,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:06,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:06,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:06,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:06,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:06,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:06,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:06,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:06,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:06,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:06,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:06,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:06,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:06,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:10:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:06,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:06,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:06,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:06,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623978693] [2020-09-21 12:10:06,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:06,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:06,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409569244] [2020-09-21 12:10:06,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:06,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:06,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:06,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:06,713 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 5 states. [2020-09-21 12:10:07,094 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:08,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:08,186 INFO L93 Difference]: Finished difference Result 250 states and 313 transitions. [2020-09-21 12:10:08,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:10:08,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 12:10:08,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:08,190 INFO L225 Difference]: With dead ends: 250 [2020-09-21 12:10:08,191 INFO L226 Difference]: Without dead ends: 155 [2020-09-21 12:10:08,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-21 12:10:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2020-09-21 12:10:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-21 12:10:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2020-09-21 12:10:08,230 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 57 [2020-09-21 12:10:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:08,231 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2020-09-21 12:10:08,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2020-09-21 12:10:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 12:10:08,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:08,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:08,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:10:08,234 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:08,235 INFO L82 PathProgramCache]: Analyzing trace with hash 23828646, now seen corresponding path program 1 times [2020-09-21 12:10:08,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:08,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299173549] [2020-09-21 12:10:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:08,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:08,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-21 12:10:09,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:09,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-21 12:10:09,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-21 12:10:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,682 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:09,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:10:09,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:09,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:09,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:10:09,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:10:09,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:09,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:10:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:09,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:09,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:09,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:10:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:10:09,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:09,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:09,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:09,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:10:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:09,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 12:10:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:09,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:09,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:09,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:09,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:09,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:09,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:09,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:09,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:09,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:09,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:09,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299173549] [2020-09-21 12:10:09,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:09,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:09,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568237965] [2020-09-21 12:10:09,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:09,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:09,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:09,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:09,915 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2020-09-21 12:10:10,460 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:11,912 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:12,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:12,730 INFO L93 Difference]: Finished difference Result 349 states and 441 transitions. [2020-09-21 12:10:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:10:12,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-09-21 12:10:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:12,741 INFO L225 Difference]: With dead ends: 349 [2020-09-21 12:10:12,744 INFO L226 Difference]: Without dead ends: 254 [2020-09-21 12:10:12,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:10:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-21 12:10:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 205. [2020-09-21 12:10:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-21 12:10:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2020-09-21 12:10:12,834 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 70 [2020-09-21 12:10:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:12,834 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2020-09-21 12:10:12,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:10:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2020-09-21 12:10:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 12:10:12,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:12,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:12,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:10:12,837 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:12,837 INFO L82 PathProgramCache]: Analyzing trace with hash 765865706, now seen corresponding path program 1 times [2020-09-21 12:10:12,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:12,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654452749] [2020-09-21 12:10:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:13,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:13,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:13,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 12:10:13,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:13,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:10:13,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 12:10:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-21 12:10:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-21 12:10:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,239 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:10:14,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:14,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:14,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:14,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:14,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:14,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:14,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:14,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:14,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:14,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:14,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:10:14,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 12:10:14,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:10:14,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 12:10:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:10:14,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:14,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:10:14,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:10:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:14,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:14,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:14,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:14,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:14,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:14,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 12:10:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:14,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:14,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:14,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:14,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 12:10:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:14,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:14,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:14,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:14,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:10:14,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:14,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654452749] [2020-09-21 12:10:14,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:14,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:14,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964864098] [2020-09-21 12:10:14,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:14,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:14,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:14,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:14,705 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand 9 states. [2020-09-21 12:10:15,522 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:16,774 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:17,086 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:17,440 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:10:17,774 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 12:10:18,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:18,784 INFO L93 Difference]: Finished difference Result 430 states and 529 transitions. [2020-09-21 12:10:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 12:10:18,784 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-21 12:10:18,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:18,792 INFO L225 Difference]: With dead ends: 430 [2020-09-21 12:10:18,793 INFO L226 Difference]: Without dead ends: 253 [2020-09-21 12:10:18,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 12:10:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-21 12:10:18,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 204. [2020-09-21 12:10:18,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-21 12:10:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 232 transitions. [2020-09-21 12:10:18,867 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 232 transitions. Word has length 84 [2020-09-21 12:10:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:18,868 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 232 transitions. [2020-09-21 12:10:18,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 232 transitions. [2020-09-21 12:10:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:18,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:18,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:18,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:10:18,871 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:18,871 INFO L82 PathProgramCache]: Analyzing trace with hash -197917338, now seen corresponding path program 1 times [2020-09-21 12:10:18,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:18,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992508506] [2020-09-21 12:10:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:18,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:19,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:19,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 12:10:19,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:19,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 12:10:19,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:19,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,285 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:20,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 12:10:20,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:20,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:20,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:20,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:20,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:20,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:20,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:20,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:20,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:10:20,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:10:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:20,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:20,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:10:20,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:10:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:20,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 12:10:20,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:10:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:20,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:20,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:20,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:20,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:20,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:20,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:20,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:20,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:20,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:20,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:20,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992508506] [2020-09-21 12:10:20,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:20,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:20,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701592408] [2020-09-21 12:10:20,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:20,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:20,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:20,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:20,738 INFO L87 Difference]: Start difference. First operand 204 states and 232 transitions. Second operand 9 states. [2020-09-21 12:10:21,960 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:22,277 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 12:10:22,632 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:22,942 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:10:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:23,904 INFO L93 Difference]: Finished difference Result 428 states and 522 transitions. [2020-09-21 12:10:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:10:23,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-21 12:10:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:23,913 INFO L225 Difference]: With dead ends: 428 [2020-09-21 12:10:23,913 INFO L226 Difference]: Without dead ends: 252 [2020-09-21 12:10:23,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:10:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-21 12:10:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 209. [2020-09-21 12:10:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-21 12:10:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 237 transitions. [2020-09-21 12:10:23,959 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 237 transitions. Word has length 85 [2020-09-21 12:10:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:23,959 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 237 transitions. [2020-09-21 12:10:23,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:23,960 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 237 transitions. [2020-09-21 12:10:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:23,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:23,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:23,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:10:23,961 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:23,962 INFO L82 PathProgramCache]: Analyzing trace with hash 503682536, now seen corresponding path program 1 times [2020-09-21 12:10:23,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:23,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685912451] [2020-09-21 12:10:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:24,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:25,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:25,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-21 12:10:25,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 12:10:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,282 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:25,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:25,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:10:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:25,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:25,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:25,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:25,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:25,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:25,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:25,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:25,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:25,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:25,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 12:10:25,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:25,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:10:25,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:25,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:25,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 12:10:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:10:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:25,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:10:25,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:10:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:25,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:25,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:25,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:25,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:25,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:25,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:25,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:25,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685912451] [2020-09-21 12:10:25,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:25,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:10:25,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435426531] [2020-09-21 12:10:25,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:10:25,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:25,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:10:25,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:10:25,603 INFO L87 Difference]: Start difference. First operand 209 states and 237 transitions. Second operand 8 states. [2020-09-21 12:10:26,749 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:27,071 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:27,382 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:28,293 INFO L93 Difference]: Finished difference Result 440 states and 542 transitions. [2020-09-21 12:10:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:10:28,294 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-09-21 12:10:28,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:28,297 INFO L225 Difference]: With dead ends: 440 [2020-09-21 12:10:28,297 INFO L226 Difference]: Without dead ends: 259 [2020-09-21 12:10:28,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:10:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-21 12:10:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 213. [2020-09-21 12:10:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-21 12:10:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 241 transitions. [2020-09-21 12:10:28,338 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 241 transitions. Word has length 85 [2020-09-21 12:10:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:28,339 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 241 transitions. [2020-09-21 12:10:28,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:10:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 241 transitions. [2020-09-21 12:10:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:10:28,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:28,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:28,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:10:28,341 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:28,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:28,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2065803863, now seen corresponding path program 1 times [2020-09-21 12:10:28,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:28,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273985090] [2020-09-21 12:10:28,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:28,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:28,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:10:29,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-21 12:10:29,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:10:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 12:10:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:29,687 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:29,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:29,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 12:10:29,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:29,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:29,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:29,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:29,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:29,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:29,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:29,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:29,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:29,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:29,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:29,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:10:29,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:10:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:10:29,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:29,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:10:29,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:10:29,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:29,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:29,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:29,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:29,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:29,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:10:29,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:29,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:10:29,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:29,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:30,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:30,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:30,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:30,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:30,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:30,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:30,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:30,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:30,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:30,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:30,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:30,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:30,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:30,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:30,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:30,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:30,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:10:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:30,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:30,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:30,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:30,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:30,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:30,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:30,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:30,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:30,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:30,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:30,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:10:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:30,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:30,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:30,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:30,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:30,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:30,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:30,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:30,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:30,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:30,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:30,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273985090] [2020-09-21 12:10:30,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:30,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:30,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282845930] [2020-09-21 12:10:30,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:30,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:30,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:30,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:30,055 INFO L87 Difference]: Start difference. First operand 213 states and 241 transitions. Second operand 7 states. [2020-09-21 12:10:30,557 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:31,183 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:33,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:33,195 INFO L93 Difference]: Finished difference Result 604 states and 760 transitions. [2020-09-21 12:10:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:10:33,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-21 12:10:33,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:33,200 INFO L225 Difference]: With dead ends: 604 [2020-09-21 12:10:33,200 INFO L226 Difference]: Without dead ends: 419 [2020-09-21 12:10:33,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:10:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-21 12:10:33,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 374. [2020-09-21 12:10:33,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-21 12:10:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 437 transitions. [2020-09-21 12:10:33,307 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 437 transitions. Word has length 85 [2020-09-21 12:10:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:33,308 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 437 transitions. [2020-09-21 12:10:33,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:10:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 437 transitions. [2020-09-21 12:10:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 12:10:33,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:33,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:33,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:10:33,313 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:33,313 INFO L82 PathProgramCache]: Analyzing trace with hash -118612273, now seen corresponding path program 1 times [2020-09-21 12:10:33,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:33,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898726795] [2020-09-21 12:10:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:33,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 12:10:34,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-21 12:10:34,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:10:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 12:10:34,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:34,682 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:34,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:10:34,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:34,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:34,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:34,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:34,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:34,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:34,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:34,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:34,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:34,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:10:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:34,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:10:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:10:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:34,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:10:34,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:34,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:34,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:34,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:34,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:34,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:34,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 12:10:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:34,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:34,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 12:10:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:34,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:34,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:34,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:34,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:34,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:34,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:34,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:34,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:34,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898726795] [2020-09-21 12:10:34,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:34,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:34,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886425992] [2020-09-21 12:10:34,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:34,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:34,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:34,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:34,942 INFO L87 Difference]: Start difference. First operand 374 states and 437 transitions. Second operand 7 states. [2020-09-21 12:10:35,504 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:37,878 INFO L93 Difference]: Finished difference Result 709 states and 904 transitions. [2020-09-21 12:10:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 12:10:37,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-09-21 12:10:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:37,885 INFO L225 Difference]: With dead ends: 709 [2020-09-21 12:10:37,885 INFO L226 Difference]: Without dead ends: 706 [2020-09-21 12:10:37,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:10:37,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-21 12:10:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 625. [2020-09-21 12:10:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-09-21 12:10:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 747 transitions. [2020-09-21 12:10:37,999 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 747 transitions. Word has length 89 [2020-09-21 12:10:38,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:38,000 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 747 transitions. [2020-09-21 12:10:38,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:10:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 747 transitions. [2020-09-21 12:10:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-21 12:10:38,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:38,004 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:38,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:10:38,004 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:38,004 INFO L82 PathProgramCache]: Analyzing trace with hash 663967861, now seen corresponding path program 1 times [2020-09-21 12:10:38,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:38,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861413165] [2020-09-21 12:10:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-21 12:10:39,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:39,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:10:39,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:10:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-09-21 12:10:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 12:10:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,369 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:39,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:10:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:39,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:39,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:39,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:39,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:39,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:39,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:39,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:39,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:10:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:39,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:10:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-21 12:10:39,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 12:10:39,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 12:10:39,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:10:39,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:10:39,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:39,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:39,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:39,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:39,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:39,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:39,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 12:10:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:10:39,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:10:39,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:10:39,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:39,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:10:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:39,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 12:10:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:39,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:39,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 12:10:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 12:10:39,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 12:10:39,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:10:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:10:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 12:10:39,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:40,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:10:40,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:10:40,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:10:40,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:40,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:40,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:40,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 12:10:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:40,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:40,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:40,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:10:40,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:10:40,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:40,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:40,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:40,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:40,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 12:10:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:40,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:40,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:40,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:40,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:40,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:40,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-21 12:10:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:40,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:40,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:40,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:40,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:40,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-21 12:10:40,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861413165] [2020-09-21 12:10:40,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:10:40,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 12:10:40,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173961205] [2020-09-21 12:10:40,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 12:10:40,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:40,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 12:10:40,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:10:40,320 INFO L87 Difference]: Start difference. First operand 625 states and 747 transitions. Second operand 16 states. [2020-09-21 12:10:41,236 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:42,434 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190