/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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:09:46,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:09:46,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:09:46,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:09:46,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:09:46,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:09:46,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:09:46,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:09:46,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:09:46,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:09:46,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:09:46,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:09:46,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:09:46,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:09:46,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:09:46,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:09:46,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:09:46,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:09:46,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:09:46,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:09:46,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:09:46,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:09:46,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:09:46,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:09:46,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:09:46,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:09:46,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:09:46,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:09:46,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:09:46,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:09:46,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:09:46,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:09:46,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:09:46,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:09:46,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:09:46,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:09:46,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:09:46,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:09:46,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:09:46,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:09:46,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:09:46,244 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 12:09:46,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:09:46,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:09:46,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:09:46,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:09:46,289 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:09:46,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:09:46,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:09:46,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:09:46,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:09:46,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:09:46,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:09:46,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:09:46,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:09:46,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:09:46,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:09:46,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:09:46,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:09:46,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:09:46,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:09:46,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:09:46,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:09:46,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:09:46,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:09:46,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:09:46,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:09:46,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:09:46,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:09:46,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:09:46,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:09:46,296 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 12:09:46,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:09:46,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:09:46,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:09:46,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:09:46,833 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:09:46,836 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-21 12:09:46,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/650f180cc/e044c8da122140aebe10e5dc958f46fc/FLAG0515c74ad [2020-09-21 12:09:47,539 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:09:47,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-21 12:09:47,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/650f180cc/e044c8da122140aebe10e5dc958f46fc/FLAG0515c74ad [2020-09-21 12:09:47,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/650f180cc/e044c8da122140aebe10e5dc958f46fc [2020-09-21 12:09:47,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:09:47,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:09:47,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:09:47,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:09:47,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:09:47,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:09:47" (1/1) ... [2020-09-21 12:09:47,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:47, skipping insertion in model container [2020-09-21 12:09:47,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:09:47" (1/1) ... [2020-09-21 12:09:47,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:09:47,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:09:48,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:09:48,454 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:09:48,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:09:48,579 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:09:48,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48 WrapperNode [2020-09-21 12:09:48,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:09:48,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:09:48,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:09:48,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:09:48,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (1/1) ... [2020-09-21 12:09:48,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:09:48,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:09:48,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:09:48,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:09:48,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (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 12:09:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:09:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:09:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:09:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:09:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:09:48,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:09:48,782 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:09:48,782 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:09:48,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:09:48,783 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:09:48,783 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:09:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:09:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:09:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:09:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:09:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:09:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:09:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:09:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:09:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:09:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:09:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:09:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:09:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:09:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:09:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:09:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:09:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:09:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:09:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:09:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:09:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:09:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:09:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:09:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:09:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:09:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:09:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:09:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:09:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:09:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:09:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:09:49,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:09:49,867 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:09:49,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:09:49 BoogieIcfgContainer [2020-09-21 12:09:49,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:09:49,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:09:49,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:09:49,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:09:49,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:09:47" (1/3) ... [2020-09-21 12:09:49,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53260cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:09:49, skipping insertion in model container [2020-09-21 12:09:49,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:09:48" (2/3) ... [2020-09-21 12:09:49,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53260cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:09:49, skipping insertion in model container [2020-09-21 12:09:49,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:09:49" (3/3) ... [2020-09-21 12:09:49,883 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-21 12:09:49,894 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:09:49,906 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:09:49,929 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:09:49,962 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:09:49,962 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:09:49,962 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:09:49,962 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:09:49,962 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:09:49,963 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:09:49,963 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:09:49,963 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:09:49,990 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-09-21 12:09:50,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:09:50,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:50,004 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 12:09:50,004 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1720198034, now seen corresponding path program 1 times [2020-09-21 12:09:50,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:50,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632107940] [2020-09-21 12:09:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:50,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:50,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:51,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:51,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:09:51,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:09:51,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:09:51,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:09:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-21 12:09:51,896 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:51,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:09:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:51,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:51,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:52,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 12:09:52,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:52,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:09:52,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:52,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:52,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:52,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:52,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:09:52,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:52,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:09:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:52,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:09:52,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:09:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:52,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:52,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:52,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:09:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:52,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:09:52,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:09:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:52,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:52,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:52,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:52,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:52,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:09:52,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:52,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:52,140 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 12:09:52,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632107940] [2020-09-21 12:09:52,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:09:52,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:09:52,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355289635] [2020-09-21 12:09:52,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:09:52,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:09:52,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:09:52,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:09:52,173 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 4 states. [2020-09-21 12:09:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:09:53,224 INFO L93 Difference]: Finished difference Result 258 states and 340 transitions. [2020-09-21 12:09:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:09:53,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:09:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:09:53,248 INFO L225 Difference]: With dead ends: 258 [2020-09-21 12:09:53,248 INFO L226 Difference]: Without dead ends: 145 [2020-09-21 12:09:53,254 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 12:09:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-21 12:09:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-09-21 12:09:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 12:09:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-21 12:09:53,369 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 51 [2020-09-21 12:09:53,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:09:53,369 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-21 12:09:53,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:09:53,370 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-21 12:09:53,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:09:53,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:53,373 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 12:09:53,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:09:53,374 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:53,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:53,375 INFO L82 PathProgramCache]: Analyzing trace with hash 220132220, now seen corresponding path program 1 times [2020-09-21 12:09:53,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:53,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115311379] [2020-09-21 12:09:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:53,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:54,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:54,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:09:54,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:09:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-21 12:09:54,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:09:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:09:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:54,840 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:54,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:09:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:54,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:54,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:54,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 12:09:54,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:54,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:54,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:54,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:54,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:54,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:54,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:54,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:54,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:54,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:54,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:54,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:54,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:54,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:54,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:54,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:54,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:54,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:54,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:55,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:55,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:55,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:55,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:09:55,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:55,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:09:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:55,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:55,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:55,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:55,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:55,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:55,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:55,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:55,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:55,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:55,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:09:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:55,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:55,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:55,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:55,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:55,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:09:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:09:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:55,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:55,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:55,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:55,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:55,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:55,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:55,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:55,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:09:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:55,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:55,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:55,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:55,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:55,073 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 12:09:55,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115311379] [2020-09-21 12:09:55,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:09:55,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:09:55,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144250936] [2020-09-21 12:09:55,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:09:55,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:09:55,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:09:55,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:09:55,086 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 5 states. [2020-09-21 12:09:55,669 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:09:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:09:56,443 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2020-09-21 12:09:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:09:56,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 12:09:56,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:09:56,450 INFO L225 Difference]: With dead ends: 199 [2020-09-21 12:09:56,450 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 12:09:56,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:09:56,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 12:09:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 12:09:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 12:09:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-09-21 12:09:56,504 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 52 [2020-09-21 12:09:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:09:56,504 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-09-21 12:09:56,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:09:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-09-21 12:09:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:09:56,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:56,519 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 12:09:56,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:09:56,519 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:56,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 889380391, now seen corresponding path program 1 times [2020-09-21 12:09:56,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:56,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776065238] [2020-09-21 12:09:56,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:56,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:57,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:57,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:57,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:09:57,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:09:57,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-21 12:09:57,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:09:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 12:09:57,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:58,109 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:09:58,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:09:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:58,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-21 12:09:58,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:09:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:09:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:58,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:09:58,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:58,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:58,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:09:58,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:09:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:58,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:09:58,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:09:58,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:58,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:09:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:58,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:09:58,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:58,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:09:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:09:58,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:09:58,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:58,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:09:58,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:58,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:09:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:58,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:09:58,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:09:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:09:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:09:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:09:58,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:09:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:58,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:58,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:09:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:09:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:58,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:09:58,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:09:58,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:09:58,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:09:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:09:58,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:09:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:09:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:09:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:09:58,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:09:58,434 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 12:09:58,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776065238] [2020-09-21 12:09:58,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:09:58,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:09:58,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936548122] [2020-09-21 12:09:58,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:09:58,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:09:58,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:09:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:09:58,438 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 5 states. [2020-09-21 12:09:58,803 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:09:59,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:09:59,718 INFO L93 Difference]: Finished difference Result 212 states and 266 transitions. [2020-09-21 12:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:09:59,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 12:09:59,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:09:59,726 INFO L225 Difference]: With dead ends: 212 [2020-09-21 12:09:59,726 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 12:09:59,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:09:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 12:09:59,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 12:09:59,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 12:09:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-09-21 12:09:59,760 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 57 [2020-09-21 12:09:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:09:59,760 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-09-21 12:09:59,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:09:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-09-21 12:09:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 12:09:59,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:09:59,762 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] [2020-09-21 12:09:59,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:09:59,763 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:09:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:09:59,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1390934310, now seen corresponding path program 1 times [2020-09-21 12:09:59,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:09:59,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801811653] [2020-09-21 12:09:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:09:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:09:59,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:00,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:00,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 12:10:00,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:00,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-09-21 12:10:00,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:00,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 12:10:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-21 12:10:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:01,420 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:01,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:01,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-21 12:10:01,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:01,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:01,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:01,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:01,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:01,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:01,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:01,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:01,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:01,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:01,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:01,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:01,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:01,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:10:01,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:10:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:01,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:01,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:01,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:01,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:01,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:10:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:01,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:10:01,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:01,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 12:10:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:01,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:01,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:01,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:01,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:01,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:01,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:01,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:01,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:01,948 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 12:10:01,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801811653] [2020-09-21 12:10:01,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:01,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:01,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478727889] [2020-09-21 12:10:01,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:01,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:01,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:01,952 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 9 states. [2020-09-21 12:10:02,413 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:03,674 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:04,046 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:04,378 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:04,698 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:05,893 INFO L93 Difference]: Finished difference Result 327 states and 436 transitions. [2020-09-21 12:10:05,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 12:10:05,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-09-21 12:10:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:05,898 INFO L225 Difference]: With dead ends: 327 [2020-09-21 12:10:05,899 INFO L226 Difference]: Without dead ends: 250 [2020-09-21 12:10:05,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 12:10:05,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-21 12:10:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 172. [2020-09-21 12:10:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-21 12:10:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 200 transitions. [2020-09-21 12:10:05,956 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 200 transitions. Word has length 65 [2020-09-21 12:10:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:05,956 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 200 transitions. [2020-09-21 12:10:05,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 200 transitions. [2020-09-21 12:10:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 12:10:05,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:05,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:05,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:10:05,959 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:05,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1685919478, now seen corresponding path program 1 times [2020-09-21 12:10:05,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:05,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77592681] [2020-09-21 12:10:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:06,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:06,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 12:10:07,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:07,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-21 12:10:07,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:07,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-21 12:10:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:10:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:07,320 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:07,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:07,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 12:10:07,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:07,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:07,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:07,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:07,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:07,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:07,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:07,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:07,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:07,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:07,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:07,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:07,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:10:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:10:07,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:07,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:07,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-21 12:10:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:07,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:07,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 12:10:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:07,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:07,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:07,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:07,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:07,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:07,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:07,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:07,548 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 12:10:07,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77592681] [2020-09-21 12:10:07,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:07,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:07,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136639985] [2020-09-21 12:10:07,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:07,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:07,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:07,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:07,552 INFO L87 Difference]: Start difference. First operand 172 states and 200 transitions. Second operand 9 states. [2020-09-21 12:10:07,967 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:09,526 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:10,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:10,531 INFO L93 Difference]: Finished difference Result 559 states and 733 transitions. [2020-09-21 12:10:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 12:10:10,532 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-21 12:10:10,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:10,538 INFO L225 Difference]: With dead ends: 559 [2020-09-21 12:10:10,538 INFO L226 Difference]: Without dead ends: 415 [2020-09-21 12:10:10,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2020-09-21 12:10:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-09-21 12:10:10,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 300. [2020-09-21 12:10:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-21 12:10:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 346 transitions. [2020-09-21 12:10:10,619 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 346 transitions. Word has length 69 [2020-09-21 12:10:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:10,620 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 346 transitions. [2020-09-21 12:10:10,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 346 transitions. [2020-09-21 12:10:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 12:10:10,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:10,622 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] [2020-09-21 12:10:10,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:10:10,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:10,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1389033876, now seen corresponding path program 1 times [2020-09-21 12:10:10,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:10,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593190771] [2020-09-21 12:10:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:10,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:10,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:11,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:11,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 12:10:11,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:11,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:10:11,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-21 12:10:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:11,920 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:11,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:11,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:11,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:10:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:12,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:12,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:12,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:12,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:12,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:12,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:12,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:12,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:12,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:12,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 12:10:12,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:12,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 12:10:12,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:10:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:12,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 12:10:12,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:12,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:10:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:12,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:12,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:12,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 12:10:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:12,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 12:10:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:12,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:12,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:12,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 12:10:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:12,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:12,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:12,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:12,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:12,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:12,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:12,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:12,261 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 12:10:12,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593190771] [2020-09-21 12:10:12,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:12,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:12,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387618715] [2020-09-21 12:10:12,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:12,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:12,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:12,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:12,264 INFO L87 Difference]: Start difference. First operand 300 states and 346 transitions. Second operand 9 states. [2020-09-21 12:10:13,256 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:13,548 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:13,858 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:14,981 INFO L93 Difference]: Finished difference Result 695 states and 897 transitions. [2020-09-21 12:10:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:10:14,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 12:10:14,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:14,987 INFO L225 Difference]: With dead ends: 695 [2020-09-21 12:10:14,987 INFO L226 Difference]: Without dead ends: 423 [2020-09-21 12:10:14,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:10:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-21 12:10:15,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 308. [2020-09-21 12:10:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-21 12:10:15,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 354 transitions. [2020-09-21 12:10:15,057 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 354 transitions. Word has length 83 [2020-09-21 12:10:15,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:15,058 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 354 transitions. [2020-09-21 12:10:15,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 354 transitions. [2020-09-21 12:10:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 12:10:15,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:15,060 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] [2020-09-21 12:10:15,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:10:15,060 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1898506966, now seen corresponding path program 1 times [2020-09-21 12:10:15,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:15,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552194760] [2020-09-21 12:10:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 12:10:16,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:16,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-21 12:10:16,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:16,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-21 12:10:16,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-21 12:10:16,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,456 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:16,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:10:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:16,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:16,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 12:10:16,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:10:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:16,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:10:16,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:10:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:16,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:16,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 12:10:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:16,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:16,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 12:10:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:16,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:16,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,778 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 12:10:16,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552194760] [2020-09-21 12:10:16,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:16,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:10:16,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40887198] [2020-09-21 12:10:16,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:10:16,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:16,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:10:16,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:10:16,781 INFO L87 Difference]: Start difference. First operand 308 states and 354 transitions. Second operand 10 states. [2020-09-21 12:10:17,251 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:18,530 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:18,825 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:19,173 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:10:19,561 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 12:10:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:20,858 INFO L93 Difference]: Finished difference Result 702 states and 877 transitions. [2020-09-21 12:10:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 12:10:20,859 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-09-21 12:10:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:20,863 INFO L225 Difference]: With dead ends: 702 [2020-09-21 12:10:20,863 INFO L226 Difference]: Without dead ends: 422 [2020-09-21 12:10:20,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-09-21 12:10:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-09-21 12:10:20,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 307. [2020-09-21 12:10:20,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-21 12:10:20,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 351 transitions. [2020-09-21 12:10:20,973 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 351 transitions. Word has length 83 [2020-09-21 12:10:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:20,974 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 351 transitions. [2020-09-21 12:10:20,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:10:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 351 transitions. [2020-09-21 12:10:20,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 12:10:20,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:20,976 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 12:10:20,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:10:20,976 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:20,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1613023294, now seen corresponding path program 1 times [2020-09-21 12:10:20,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:20,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122722779] [2020-09-21 12:10:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 12:10:22,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:22,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-21 12:10:22,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-21 12:10:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:22,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,306 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:22,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:10:22,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:22,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:22,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:22,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:22,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:22,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:22,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:22,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:22,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:22,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 12:10:22,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:10:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:22,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:22,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:10:22,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:10:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:22,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:22,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:22,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 12:10:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:22,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 12:10:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:22,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,674 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 12:10:22,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122722779] [2020-09-21 12:10:22,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:22,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:10:22,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739721917] [2020-09-21 12:10:22,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:10:22,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:22,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:10:22,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:10:22,679 INFO L87 Difference]: Start difference. First operand 307 states and 351 transitions. Second operand 10 states. [2020-09-21 12:10:23,731 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:24,040 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:24,358 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:24,674 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:10:25,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:25,788 INFO L93 Difference]: Finished difference Result 705 states and 887 transitions. [2020-09-21 12:10:25,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 12:10:25,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-09-21 12:10:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:25,793 INFO L225 Difference]: With dead ends: 705 [2020-09-21 12:10:25,793 INFO L226 Difference]: Without dead ends: 426 [2020-09-21 12:10:25,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:10:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-21 12:10:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 317. [2020-09-21 12:10:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-21 12:10:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 361 transitions. [2020-09-21 12:10:25,872 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 361 transitions. Word has length 84 [2020-09-21 12:10:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:25,873 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 361 transitions. [2020-09-21 12:10:25,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:10:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 361 transitions. [2020-09-21 12:10:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 12:10:25,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:25,875 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 12:10:25,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:10:25,876 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:25,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1884470469, now seen corresponding path program 1 times [2020-09-21 12:10:25,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:25,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062117872] [2020-09-21 12:10:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 12:10:26,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:26,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-09-21 12:10:26,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:26,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:10:26,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 12:10:26,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,236 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:10:27,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:27,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:27,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:27,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:27,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:27,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:27,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:27,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:27,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:10:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:10:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:27,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:27,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:27,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:27,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 12:10:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:27,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 12:10:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:27,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:27,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:27,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:27,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:27,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:27,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:27,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:27,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:27,467 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 12:10:27,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062117872] [2020-09-21 12:10:27,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:27,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:27,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116743904] [2020-09-21 12:10:27,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:27,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:27,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:27,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:27,469 INFO L87 Difference]: Start difference. First operand 317 states and 361 transitions. Second operand 7 states. [2020-09-21 12:10:27,841 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:29,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:29,857 INFO L93 Difference]: Finished difference Result 720 states and 916 transitions. [2020-09-21 12:10:29,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:10:29,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-09-21 12:10:29,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:29,864 INFO L225 Difference]: With dead ends: 720 [2020-09-21 12:10:29,864 INFO L226 Difference]: Without dead ends: 717 [2020-09-21 12:10:29,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:10:29,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-09-21 12:10:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 539. [2020-09-21 12:10:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-09-21 12:10:29,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 611 transitions. [2020-09-21 12:10:29,966 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 611 transitions. Word has length 84 [2020-09-21 12:10:29,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:29,967 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 611 transitions. [2020-09-21 12:10:29,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:10:29,967 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 611 transitions. [2020-09-21 12:10:29,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 12:10:29,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:29,971 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:29,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:10:29,971 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:29,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:29,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1956073980, now seen corresponding path program 1 times [2020-09-21 12:10:29,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:29,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420350343] [2020-09-21 12:10:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:30,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-21 12:10:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:10:31,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:10:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:10:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:31,317 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:31,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-21 12:10:31,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:31,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:31,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:31,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:31,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:31,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:31,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:31,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:31,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:31,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:31,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:31,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:31,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:31,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:31,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:10:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 12:10:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 12:10:31,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:10:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 12:10:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:10:31,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 12:10:31,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:10:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:31,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:10:31,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:10:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:31,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:31,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:31,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 12:10:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:10:31,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:10:31,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:31,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:10:31,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:31,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:10:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 12:10:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:31,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 12:10:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:31,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:31,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:10:31,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:31,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:31,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-21 12:10:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:31,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 12:10:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:31,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:31,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:31,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:31,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 12:10:31,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420350343] [2020-09-21 12:10:31,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:10:31,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:10:31,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575375896] [2020-09-21 12:10:31,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:10:31,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:31,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:10:31,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:10:31,958 INFO L87 Difference]: Start difference. First operand 539 states and 611 transitions. Second operand 12 states. [2020-09-21 12:10:32,403 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:33,412 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-21 12:10:35,847 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190