/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:05:32,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:05:32,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:05:32,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:05:32,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:05:32,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:05:32,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:05:32,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:05:32,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:05:32,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:05:32,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:05:32,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:05:32,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:05:32,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:05:32,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:05:32,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:05:32,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:05:32,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:05:32,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:05:32,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:05:32,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:05:32,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:05:32,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:05:32,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:05:32,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:05:32,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:05:32,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:05:32,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:05:32,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:05:32,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:05:32,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:05:32,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:05:32,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:05:32,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:05:32,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:05:32,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:05:32,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:05:32,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:05:32,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:05:32,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:05:32,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:05:32,132 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 18:05:32,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:05:32,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:05:32,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:05:32,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:05:32,158 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:05:32,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:05:32,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:05:32,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:05:32,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:05:32,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:05:32,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:05:32,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:05:32,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:05:32,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:05:32,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:05:32,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:05:32,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:05:32,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:05:32,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:05:32,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:05:32,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:05:32,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:05:32,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:05:32,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:05:32,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:05:32,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:05:32,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:05:32,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:05:32,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:05:32,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=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=5000;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=5000;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=5000;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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:05:32,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:05:32,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:05:32,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:05:32,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:05:32,686 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:05:32,687 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 18:05:32,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e0b4cdcc/947850f90ea14837b10a983ad178c7b4/FLAG0c6aef5f4 [2020-09-24 18:05:33,321 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:05:33,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 18:05:33,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e0b4cdcc/947850f90ea14837b10a983ad178c7b4/FLAG0c6aef5f4 [2020-09-24 18:05:33,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e0b4cdcc/947850f90ea14837b10a983ad178c7b4 [2020-09-24 18:05:33,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:05:33,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:05:33,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:33,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:05:33,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:05:33,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:33" (1/1) ... [2020-09-24 18:05:33,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:33, skipping insertion in model container [2020-09-24 18:05:33,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:33" (1/1) ... [2020-09-24 18:05:33,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:05:33,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:05:34,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:34,252 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:05:34,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:34,418 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:05:34,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34 WrapperNode [2020-09-24 18:05:34,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:34,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:05:34,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:05:34,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:05:34,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (1/1) ... [2020-09-24 18:05:34,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:05:34,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:05:34,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:05:34,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:05:34,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (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 18:05:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:05:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:05:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:05:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:05:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:05:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:05:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:05:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:05:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:05:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:05:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:05:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:05:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:05:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:05:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:05:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:05:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:05:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:05:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:05:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:05:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:05:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:05:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:05:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:05:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:05:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:05:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:05:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:05:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:05:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:05:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:05:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:05:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:05:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:05:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:05:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:05:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:05:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:05:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:05:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:05:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:05:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:05:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:05:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:05:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:05:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:05:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:05:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:05:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:05:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:05:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:05:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:05:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:05:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:05:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:05:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:05:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:05:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:05:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:05:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:05:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:05:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:05:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:05:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:05:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:05:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:05:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:05:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:05:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:05:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:05:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:05:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:05:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:05:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:05:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:05:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:05:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:05:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:05:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:05:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:05:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:05:35,894 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:05:35,895 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:05:35,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:05:35 BoogieIcfgContainer [2020-09-24 18:05:35,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:05:35,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:05:35,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:05:35,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:05:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:05:33" (1/3) ... [2020-09-24 18:05:35,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:05:35, skipping insertion in model container [2020-09-24 18:05:35,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:34" (2/3) ... [2020-09-24 18:05:35,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:05:35, skipping insertion in model container [2020-09-24 18:05:35,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:05:35" (3/3) ... [2020-09-24 18:05:35,913 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-24 18:05:35,926 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:05:35,938 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:05:35,962 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:05:35,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:05:35,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:05:35,998 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:05:35,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:05:35,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:05:35,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:05:35,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:05:35,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:05:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 18:05:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:05:36,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:36,051 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] [2020-09-24 18:05:36,051 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:36,060 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-24 18:05:36,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:36,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154183335] [2020-09-24 18:05:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:41,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:41,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:05:41,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:05:41,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 18:05:41,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:05:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:05:41,860 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:41,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:41,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:41,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:41,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:41,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:41,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 18:05:41,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:42,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:42,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:42,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:42,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:42,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:42,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:42,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:42,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:42,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:42,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:42,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:42,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:42,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:42,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:42,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:42,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:42,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:42,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:42,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:42,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:05:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:42,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:42,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:42,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:42,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:42,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:05:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:42,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:42,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:42,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:42,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:42,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:42,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:42,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:42,154 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 18:05:42,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154183335] [2020-09-24 18:05:42,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:42,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:05:42,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720344437] [2020-09-24 18:05:42,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:05:42,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:42,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:05:42,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:05:42,197 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-24 18:05:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:43,927 INFO L93 Difference]: Finished difference Result 498 states and 590 transitions. [2020-09-24 18:05:43,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:05:43,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:05:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:43,950 INFO L225 Difference]: With dead ends: 498 [2020-09-24 18:05:43,950 INFO L226 Difference]: Without dead ends: 307 [2020-09-24 18:05:43,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:05:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-24 18:05:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-09-24 18:05:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-24 18:05:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2020-09-24 18:05:44,069 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 142 [2020-09-24 18:05:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:44,070 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2020-09-24 18:05:44,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:05:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2020-09-24 18:05:44,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:05:44,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:44,082 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] [2020-09-24 18:05:44,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:05:44,083 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:44,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:44,083 INFO L82 PathProgramCache]: Analyzing trace with hash -157653560, now seen corresponding path program 1 times [2020-09-24 18:05:44,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:44,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934627330] [2020-09-24 18:05:44,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:45,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:46,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:05:49,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:05:49,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 18:05:49,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:05:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:05:49,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,498 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:49,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:49,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:05:49,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:49,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:49,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:49,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:49,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:49,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:05:49,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:49,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:49,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:05:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:49,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:49,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:49,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:05:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:49,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:49,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:49,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:49,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:49,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:49,783 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 18:05:49,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934627330] [2020-09-24 18:05:49,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:49,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:05:49,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751985552] [2020-09-24 18:05:49,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:05:49,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:49,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:05:49,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:05:49,789 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand 4 states. [2020-09-24 18:05:50,428 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:51,529 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2020-09-24 18:05:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:05:51,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:05:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:51,540 INFO L225 Difference]: With dead ends: 411 [2020-09-24 18:05:51,541 INFO L226 Difference]: Without dead ends: 290 [2020-09-24 18:05:51,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:05:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-24 18:05:51,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-09-24 18:05:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 18:05:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-09-24 18:05:51,610 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 143 [2020-09-24 18:05:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:51,611 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-09-24 18:05:51,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:05:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-09-24 18:05:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:05:51,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:51,613 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] [2020-09-24 18:05:51,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:05:51,614 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:51,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:51,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1412760522, now seen corresponding path program 1 times [2020-09-24 18:05:51,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:51,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118865240] [2020-09-24 18:05:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:51,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:52,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:52,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:56,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:56,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:05:56,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:05:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:05:56,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:05:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:05:56,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:57,099 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:57,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:57,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:05:57,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:57,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:57,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:57,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:57,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:57,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:57,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:57,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:57,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:57,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:57,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:57,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:05:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:57,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:57,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:57,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:05:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:57,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:05:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:57,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:57,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:57,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:57,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:05:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:57,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:57,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:57,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:57,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:57,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:57,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:05:57,338 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 18:05:57,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118865240] [2020-09-24 18:05:57,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:57,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:05:57,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89747891] [2020-09-24 18:05:57,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:05:57,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:57,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:05:57,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:05:57,343 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 5 states. [2020-09-24 18:05:57,902 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:58,976 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2020-09-24 18:05:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:05:58,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:05:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:58,981 INFO L225 Difference]: With dead ends: 457 [2020-09-24 18:05:58,981 INFO L226 Difference]: Without dead ends: 312 [2020-09-24 18:05:58,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:05:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-24 18:05:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-09-24 18:05:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 18:05:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 273 transitions. [2020-09-24 18:05:59,057 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 273 transitions. Word has length 156 [2020-09-24 18:05:59,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:59,058 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 273 transitions. [2020-09-24 18:05:59,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:05:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 273 transitions. [2020-09-24 18:05:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-24 18:05:59,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:59,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:59,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:05:59,061 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:59,061 INFO L82 PathProgramCache]: Analyzing trace with hash -872720246, now seen corresponding path program 1 times [2020-09-24 18:05:59,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:59,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479533802] [2020-09-24 18:05:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:59,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:59,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:03,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:03,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:03,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 18:06:04,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:06:04,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 18:06:04,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:06:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-24 18:06:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:06:04,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,444 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:04,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:04,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 18:06:04,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:04,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:04,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:04,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:04,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:04,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:04,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:04,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:04,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:06:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:04,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:04,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:06:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:06:04,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:06:04,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:06:04,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:06:04,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:06:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:06:04,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:06:04,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:06:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:06:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:06:04,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:04,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:04,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:06:04,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:06:04,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:04,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:06:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:04,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:04,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 18:06:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:04,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:04,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:04,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:04,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:04,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:04,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:04,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:04,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:04,843 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 18:06:04,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479533802] [2020-09-24 18:06:04,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:04,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:06:04,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027220461] [2020-09-24 18:06:04,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:06:04,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:04,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:06:04,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:06:04,849 INFO L87 Difference]: Start difference. First operand 255 states and 273 transitions. Second operand 8 states. [2020-09-24 18:06:05,679 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:07,461 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:08,527 INFO L93 Difference]: Finished difference Result 637 states and 753 transitions. [2020-09-24 18:06:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:06:08,528 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-09-24 18:06:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:08,533 INFO L225 Difference]: With dead ends: 637 [2020-09-24 18:06:08,534 INFO L226 Difference]: Without dead ends: 492 [2020-09-24 18:06:08,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:06:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-24 18:06:08,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-24 18:06:08,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 18:06:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 392 transitions. [2020-09-24 18:06:08,597 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 392 transitions. Word has length 169 [2020-09-24 18:06:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:08,597 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 392 transitions. [2020-09-24 18:06:08,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:06:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 392 transitions. [2020-09-24 18:06:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 18:06:08,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:08,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:08,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:06:08,601 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:08,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2060834521, now seen corresponding path program 1 times [2020-09-24 18:06:08,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:08,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709738642] [2020-09-24 18:06:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:09,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:09,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:10,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:10,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 18:06:13,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:06:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 18:06:13,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 18:06:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:06:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,013 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:14,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:14,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:06:14,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:14,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:14,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:14,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:14,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:06:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:14,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:14,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:06:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:06:14,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:06:14,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 18:06:14,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:06:14,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 18:06:14,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:06:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:06:14,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 18:06:14,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:06:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:06:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:06:14,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:14,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:06:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:06:14,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:06:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:14,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:14,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:06:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:14,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:14,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:14,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,508 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 18:06:14,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709738642] [2020-09-24 18:06:14,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:14,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:06:14,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718421960] [2020-09-24 18:06:14,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:06:14,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:14,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:06:14,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:06:14,511 INFO L87 Difference]: Start difference. First operand 365 states and 392 transitions. Second operand 10 states. [2020-09-24 18:06:15,102 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:06:16,691 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:17,035 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:17,324 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:06:17,644 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:17,958 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:18,271 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:18,555 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:18,865 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:19,812 INFO L93 Difference]: Finished difference Result 495 states and 579 transitions. [2020-09-24 18:06:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 18:06:19,813 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-24 18:06:19,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:19,817 INFO L225 Difference]: With dead ends: 495 [2020-09-24 18:06:19,818 INFO L226 Difference]: Without dead ends: 492 [2020-09-24 18:06:19,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:06:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-24 18:06:19,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-24 18:06:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 18:06:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 391 transitions. [2020-09-24 18:06:19,872 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 391 transitions. Word has length 193 [2020-09-24 18:06:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:19,873 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 391 transitions. [2020-09-24 18:06:19,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:06:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 391 transitions. [2020-09-24 18:06:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 18:06:19,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:19,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:19,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:06:19,877 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:19,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1456700210, now seen corresponding path program 1 times [2020-09-24 18:06:19,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:19,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281420391] [2020-09-24 18:06:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:19,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:20,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking...