/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:06:35,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:06:35,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:06:36,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:06:36,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:06:36,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:06:36,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:06:36,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:06:36,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:06:36,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:06:36,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:06:36,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:06:36,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:06:36,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:06:36,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:06:36,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:06:36,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:06:36,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:06:36,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:06:36,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:06:36,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:06:36,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:06:36,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:06:36,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:06:36,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:06:36,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:06:36,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:06:36,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:06:36,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:06:36,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:06:36,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:06:36,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:06:36,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:06:36,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:06:36,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:06:36,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:06:36,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:06:36,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:06:36,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:06:36,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:06:36,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:06:36,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:06:36,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:06:36,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:06:36,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:06:36,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:06:36,094 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:06:36,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:06:36,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:06:36,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:06:36,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:06:36,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:06:36,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:06:36,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:06:36,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:06:36,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:06:36,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:06:36,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:06:36,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:06:36,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:06:36,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:06:36,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:06:36,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:06:36,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:36,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:06:36,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:06:36,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:06:36,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:06:36,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:06:36,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:06:36,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:06:36,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:06:36,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:06:36,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:06:36,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:06:36,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:06:36,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:06:36,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-24 19:06:36,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f85cb693c/0fdb50ad59ad40929d0473a102b5f24a/FLAG6a0ba2e31 [2020-09-24 19:06:37,268 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:06:37,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-24 19:06:37,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f85cb693c/0fdb50ad59ad40929d0473a102b5f24a/FLAG6a0ba2e31 [2020-09-24 19:06:37,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f85cb693c/0fdb50ad59ad40929d0473a102b5f24a [2020-09-24 19:06:37,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:06:37,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:06:37,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:06:37,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:06:37,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:06:37,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:06:37" (1/1) ... [2020-09-24 19:06:37,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ccc30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:37, skipping insertion in model container [2020-09-24 19:06:37,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:06:37" (1/1) ... [2020-09-24 19:06:37,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:06:37,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:06:38,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:06:38,170 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:06:38,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:06:38,294 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:06:38,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38 WrapperNode [2020-09-24 19:06:38,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:06:38,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:06:38,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:06:38,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:06:38,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... [2020-09-24 19:06:38,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:06:38,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:06:38,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:06:38,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:06:38,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:06:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:06:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:06:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:06:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:06:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:06:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:06:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:06:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:06:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:06:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:06:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:06:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:06:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:06:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:06:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:06:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:06:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:06:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:06:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:06:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:06:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:06:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:06:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:06:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:06:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:06:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:06:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:06:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:06:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:06:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:06:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:06:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:06:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:06:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:06:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:06:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:06:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:06:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:06:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:06:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:06:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:06:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:06:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:06:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:06:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:06:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:06:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:06:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:06:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:06:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:06:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:06:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:06:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:06:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:06:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:06:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:06:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:06:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:06:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:06:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:06:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:06:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:06:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:06:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:06:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:06:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:06:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:06:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:06:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:06:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:06:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:06:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:06:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:06:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:06:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:06:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:06:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:06:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:06:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:06:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:06:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:06:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:06:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:06:39,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:06:39,697 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:06:39,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:06:39 BoogieIcfgContainer [2020-09-24 19:06:39,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:06:39,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:06:39,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:06:39,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:06:39,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:06:37" (1/3) ... [2020-09-24 19:06:39,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3e6014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:06:39, skipping insertion in model container [2020-09-24 19:06:39,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:38" (2/3) ... [2020-09-24 19:06:39,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3e6014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:06:39, skipping insertion in model container [2020-09-24 19:06:39,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:06:39" (3/3) ... [2020-09-24 19:06:39,715 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-09-24 19:06:39,726 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:06:39,737 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:06:39,758 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:06:39,785 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:06:39,785 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:06:39,785 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:06:39,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:06:39,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:06:39,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:06:39,786 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:06:39,786 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:06:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states. [2020-09-24 19:06:39,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 19:06:39,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:39,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:39,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:39,837 INFO L82 PathProgramCache]: Analyzing trace with hash -436184323, now seen corresponding path program 1 times [2020-09-24 19:06:39,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:39,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734796295] [2020-09-24 19:06:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:41,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:41,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:06:41,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:41,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1061 [2020-09-24 19:06:41,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:06:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:06:41,746 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:41,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:41,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:41,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:41,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:41,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-24 19:06:41,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:42,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:42,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:42,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:42,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:42,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:42,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:42,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:42,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:42,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:42,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:06:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:42,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:06:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:42,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:42,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:42,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:42,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:42,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:42,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:42,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734796295] [2020-09-24 19:06:42,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:42,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:06:42,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294477388] [2020-09-24 19:06:42,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:06:42,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:42,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:06:42,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:06:42,154 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 4 states. [2020-09-24 19:06:43,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:43,838 INFO L93 Difference]: Finished difference Result 499 states and 589 transitions. [2020-09-24 19:06:43,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:06:43,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 19:06:43,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:43,860 INFO L225 Difference]: With dead ends: 499 [2020-09-24 19:06:43,860 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 19:06:43,867 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 [2020-09-24 19:06:43,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 19:06:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 266. [2020-09-24 19:06:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-24 19:06:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 288 transitions. [2020-09-24 19:06:43,996 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 288 transitions. Word has length 148 [2020-09-24 19:06:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:43,999 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 288 transitions. [2020-09-24 19:06:43,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:06:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 288 transitions. [2020-09-24 19:06:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 19:06:44,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:44,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:44,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:06:44,014 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:44,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1204536532, now seen corresponding path program 1 times [2020-09-24 19:06:44,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:44,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918835811] [2020-09-24 19:06:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 19:06:45,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:45,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-09-24 19:06:45,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:06:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:06:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:45,565 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:45,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:45,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 19:06:45,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:45,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:45,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:45,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:45,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:45,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:45,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:45,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:45,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:45,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:06:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:45,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:45,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:06:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:45,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:45,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:45,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:45,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:45,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:45,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:45,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918835811] [2020-09-24 19:06:45,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:45,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:06:45,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579107639] [2020-09-24 19:06:45,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:06:45,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:06:45,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:06:45,800 INFO L87 Difference]: Start difference. First operand 266 states and 288 transitions. Second operand 5 states. [2020-09-24 19:06:46,774 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:47,979 INFO L93 Difference]: Finished difference Result 415 states and 470 transitions. [2020-09-24 19:06:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:06:47,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 19:06:47,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:47,991 INFO L225 Difference]: With dead ends: 415 [2020-09-24 19:06:47,991 INFO L226 Difference]: Without dead ends: 307 [2020-09-24 19:06:47,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:06:47,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-24 19:06:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 256. [2020-09-24 19:06:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-24 19:06:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 275 transitions. [2020-09-24 19:06:48,078 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 275 transitions. Word has length 149 [2020-09-24 19:06:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:48,079 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 275 transitions. [2020-09-24 19:06:48,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:06:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 275 transitions. [2020-09-24 19:06:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 19:06:48,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:48,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:48,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:06:48,082 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:48,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:48,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1794035067, now seen corresponding path program 1 times [2020-09-24 19:06:48,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:48,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352825856] [2020-09-24 19:06:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:48,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 19:06:49,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:06:49,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:06:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:49,546 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:49,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:49,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 19:06:49,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:49,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:49,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:49,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:49,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:49,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:49,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:49,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:49,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:49,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:49,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:06:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:49,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:49,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:06:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:06:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:49,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:49,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:49,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:06:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:49,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:49,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:49,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:49,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:49,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:49,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:49,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352825856] [2020-09-24 19:06:49,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:49,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:06:49,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867472327] [2020-09-24 19:06:49,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:06:49,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:49,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:06:49,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:06:49,931 INFO L87 Difference]: Start difference. First operand 256 states and 275 transitions. Second operand 6 states. [2020-09-24 19:06:50,623 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:06:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:52,494 INFO L93 Difference]: Finished difference Result 622 states and 723 transitions. [2020-09-24 19:06:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:06:52,495 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 19:06:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:52,500 INFO L225 Difference]: With dead ends: 622 [2020-09-24 19:06:52,501 INFO L226 Difference]: Without dead ends: 481 [2020-09-24 19:06:52,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:06:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-24 19:06:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 381. [2020-09-24 19:06:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-24 19:06:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 418 transitions. [2020-09-24 19:06:52,587 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 418 transitions. Word has length 162 [2020-09-24 19:06:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:52,588 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 418 transitions. [2020-09-24 19:06:52,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:06:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 418 transitions. [2020-09-24 19:06:52,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 19:06:52,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:52,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:52,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:06:52,591 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:52,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1969407122, now seen corresponding path program 1 times [2020-09-24 19:06:52,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:52,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512288146] [2020-09-24 19:06:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:52,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:53,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:53,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 19:06:53,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:06:53,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:06:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 19:06:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 19:06:53,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:53,940 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:53,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:54,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 19:06:54,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:06:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:54,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:54,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:54,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:54,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:54,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:06:54,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:54,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:54,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:06:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:54,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:54,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:06:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:06:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:06:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:54,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:06:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:06:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:54,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:06:54,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:06:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:54,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:54,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:54,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:54,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:54,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:54,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:54,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:54,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512288146] [2020-09-24 19:06:54,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:54,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:06:54,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87630340] [2020-09-24 19:06:54,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:06:54,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:54,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:06:54,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:06:54,388 INFO L87 Difference]: Start difference. First operand 381 states and 418 transitions. Second operand 10 states. [2020-09-24 19:06:54,915 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:06:56,448 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:56,781 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:06:57,222 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:06:57,556 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:57,862 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:06:58,177 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:06:58,475 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:06:58,947 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:00,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:00,434 INFO L93 Difference]: Finished difference Result 1042 states and 1248 transitions. [2020-09-24 19:07:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:07:00,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 19:07:00,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:00,451 INFO L225 Difference]: With dead ends: 1042 [2020-09-24 19:07:00,451 INFO L226 Difference]: Without dead ends: 776 [2020-09-24 19:07:00,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:07:00,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-24 19:07:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 614. [2020-09-24 19:07:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-09-24 19:07:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 683 transitions. [2020-09-24 19:07:00,545 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 683 transitions. Word has length 167 [2020-09-24 19:07:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:00,545 INFO L479 AbstractCegarLoop]: Abstraction has 614 states and 683 transitions. [2020-09-24 19:07:00,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:07:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 683 transitions. [2020-09-24 19:07:00,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 19:07:00,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:00,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:00,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:07:00,549 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:00,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:00,550 INFO L82 PathProgramCache]: Analyzing trace with hash 515321639, now seen corresponding path program 1 times [2020-09-24 19:07:00,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:00,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583093930] [2020-09-24 19:07:00,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:00,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:00,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:01,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:01,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:01,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 19:07:01,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:01,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-24 19:07:01,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 19:07:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:07:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,043 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:02,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:02,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:07:02,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:02,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:02,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:02,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:02,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:02,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:02,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:02,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:02,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:07:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:02,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:07:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:02,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:07:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:07:02,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:02,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:02,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583093930] [2020-09-24 19:07:02,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:02,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:02,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95726811] [2020-09-24 19:07:02,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:02,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:02,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:02,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:02,375 INFO L87 Difference]: Start difference. First operand 614 states and 683 transitions. Second operand 11 states. [2020-09-24 19:07:02,927 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:04,450 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:04,768 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:05,118 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:05,477 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 19:07:05,797 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:07:06,631 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:06,957 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:07,321 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:08,539 INFO L93 Difference]: Finished difference Result 1660 states and 2032 transitions. [2020-09-24 19:07:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 19:07:08,540 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-09-24 19:07:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:08,548 INFO L225 Difference]: With dead ends: 1660 [2020-09-24 19:07:08,549 INFO L226 Difference]: Without dead ends: 1161 [2020-09-24 19:07:08,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 19:07:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-09-24 19:07:08,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 900. [2020-09-24 19:07:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-09-24 19:07:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1015 transitions. [2020-09-24 19:07:08,681 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1015 transitions. Word has length 172 [2020-09-24 19:07:08,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:08,682 INFO L479 AbstractCegarLoop]: Abstraction has 900 states and 1015 transitions. [2020-09-24 19:07:08,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1015 transitions. [2020-09-24 19:07:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 19:07:08,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:08,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:08,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:07:08,688 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:08,688 INFO L82 PathProgramCache]: Analyzing trace with hash 975143304, now seen corresponding path program 1 times [2020-09-24 19:07:08,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:08,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657925044] [2020-09-24 19:07:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:09,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:09,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 19:07:09,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:07:09,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:07:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:09,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,038 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:10,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:10,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 19:07:10,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:10,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:10,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:10,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:10,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:10,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:10,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:10,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:10,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:10,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:10,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:10,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 19:07:10,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:07:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:10,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:07:10,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:07:10,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:10,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:10,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:07:10,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:07:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:10,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:10,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:10,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:07:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 19:07:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:10,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:10,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:10,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:07:10,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657925044] [2020-09-24 19:07:10,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:10,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 19:07:10,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173504239] [2020-09-24 19:07:10,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:07:10,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:10,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:07:10,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:07:10,596 INFO L87 Difference]: Start difference. First operand 900 states and 1015 transitions. Second operand 12 states. [2020-09-24 19:07:12,222 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:12,560 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:12,941 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 19:07:13,301 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:13,639 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:07:13,944 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:15,913 INFO L93 Difference]: Finished difference Result 2252 states and 2854 transitions. [2020-09-24 19:07:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 19:07:15,914 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 222 [2020-09-24 19:07:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:15,925 INFO L225 Difference]: With dead ends: 2252 [2020-09-24 19:07:15,926 INFO L226 Difference]: Without dead ends: 1467 [2020-09-24 19:07:15,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2020-09-24 19:07:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2020-09-24 19:07:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 938. [2020-09-24 19:07:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-09-24 19:07:16,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1053 transitions. [2020-09-24 19:07:16,109 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1053 transitions. Word has length 222 [2020-09-24 19:07:16,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:16,109 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1053 transitions. [2020-09-24 19:07:16,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:07:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1053 transitions. [2020-09-24 19:07:16,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 19:07:16,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:16,115 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:16,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:07:16,115 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:16,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:16,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1880024600, now seen corresponding path program 1 times [2020-09-24 19:07:16,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:16,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929720190] [2020-09-24 19:07:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:16,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 19:07:17,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:07:17,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-24 19:07:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:17,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,460 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:17,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:17,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 19:07:17,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:17,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:17,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:17,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:17,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:17,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:17,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:17,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:17,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:17,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:17,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:17,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:17,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:17,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:07:17,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:07:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:17,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:07:17,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:07:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:17,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:17,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:17,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:17,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:17,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:17,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:17,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:07:17,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:07:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:17,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:17,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:17,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:07:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:17,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 19:07:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:17,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:17,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:17,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:07:17,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929720190] [2020-09-24 19:07:17,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:17,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:17,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197053723] [2020-09-24 19:07:17,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:17,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:17,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:17,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:17,969 INFO L87 Difference]: Start difference. First operand 938 states and 1053 transitions. Second operand 11 states. [2020-09-24 19:07:19,373 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:19,684 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:20,015 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:20,334 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:20,627 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:22,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:22,181 INFO L93 Difference]: Finished difference Result 2326 states and 2924 transitions. [2020-09-24 19:07:22,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:07:22,182 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2020-09-24 19:07:22,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:22,191 INFO L225 Difference]: With dead ends: 2326 [2020-09-24 19:07:22,191 INFO L226 Difference]: Without dead ends: 1503 [2020-09-24 19:07:22,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-09-24 19:07:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2020-09-24 19:07:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 962. [2020-09-24 19:07:22,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2020-09-24 19:07:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1077 transitions. [2020-09-24 19:07:22,329 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1077 transitions. Word has length 222 [2020-09-24 19:07:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:22,329 INFO L479 AbstractCegarLoop]: Abstraction has 962 states and 1077 transitions. [2020-09-24 19:07:22,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:22,330 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1077 transitions. [2020-09-24 19:07:22,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 19:07:22,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:22,334 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:22,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:07:22,334 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:22,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:22,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1794470949, now seen corresponding path program 1 times [2020-09-24 19:07:22,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:22,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55425473] [2020-09-24 19:07:22,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:22,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:22,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 19:07:23,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:23,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:07:23,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:07:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:07:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:07:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,716 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:23,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:23,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 19:07:23,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:23,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:23,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:23,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:23,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:23,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:23,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:23,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:23,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:23,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:23,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:23,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:23,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:23,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:07:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:23,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:23,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 19:07:24,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 19:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 19:07:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:24,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:24,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:24,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:24,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 19:07:24,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:07:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 19:07:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:24,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:24,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:07:24,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:07:24,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:24,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:24,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:24,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:07:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:24,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 19:07:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:24,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:07:24,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55425473] [2020-09-24 19:07:24,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:07:24,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 19:07:24,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086553730] [2020-09-24 19:07:24,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 19:07:24,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:24,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 19:07:24,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:07:24,427 INFO L87 Difference]: Start difference. First operand 962 states and 1077 transitions. Second operand 16 states. [2020-09-24 19:07:24,981 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:26,122 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:26,891 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:27,237 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:27,681 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:28,018 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193