/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_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:59:12,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:59:12,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:59:12,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:59:12,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:59:12,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:59:12,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:59:12,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:59:12,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:59:12,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:59:12,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:59:12,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:59:12,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:59:12,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:59:12,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:59:12,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:59:12,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:59:12,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:59:12,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:59:12,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:59:12,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:59:12,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:59:12,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:59:12,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:59:12,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:59:12,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:59:12,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:59:12,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:59:12,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:59:12,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:59:12,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:59:12,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:59:12,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:59:12,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:59:12,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:59:12,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:59:12,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:59:12,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:59:12,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:59:12,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:59:12,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:59:12,647 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 17:59:12,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:59:12,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:59:12,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:59:12,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:59:12,679 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:59:12,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:59:12,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:59:12,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:59:12,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:59:12,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:59:12,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:59:12,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:59:12,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:59:12,681 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:59:12,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:59:12,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:59:12,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:59:12,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:59:12,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:59:12,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:59:12,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:59:12,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:59:12,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:59:12,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:59:12,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:59:12,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:59:12,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:59:12,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:59:12,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:59:12,684 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 17:59:13,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:59:13,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:59:13,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:59:13,159 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:59:13,159 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:59:13,161 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-24 17:59:13,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cda53255/d8f79911f88849abab947c8f2e5047f8/FLAG5ebc034c5 [2020-09-24 17:59:13,871 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:59:13,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-24 17:59:13,887 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cda53255/d8f79911f88849abab947c8f2e5047f8/FLAG5ebc034c5 [2020-09-24 17:59:14,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cda53255/d8f79911f88849abab947c8f2e5047f8 [2020-09-24 17:59:14,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:59:14,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:59:14,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:59:14,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:59:14,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:59:14,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:14,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14, skipping insertion in model container [2020-09-24 17:59:14,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:14,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:59:14,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:59:14,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:59:14,793 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:59:14,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:59:14,941 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:59:14,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14 WrapperNode [2020-09-24 17:59:14,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:59:14,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:59:14,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:59:14,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:59:14,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:14,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:14,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:14,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:15,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:15,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:15,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (1/1) ... [2020-09-24 17:59:15,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:59:15,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:59:15,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:59:15,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:59:15,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (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 17:59:15,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:59:15,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:59:15,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:59:15,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:59:15,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:59:15,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:59:15,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:59:15,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:59:15,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:59:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:59:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:59:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:59:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:59:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:59:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:59:15,145 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:59:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:59:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:59:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:59:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:59:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:59:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:59:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:59:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:59:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:59:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:59:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:59:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:59:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:59:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:59:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:59:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:59:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:59:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:59:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:59:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:59:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:59:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:59:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:59:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:59:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:59:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:59:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:59:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:59:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:59:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:59:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:59:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:59:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:59:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:59:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:59:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:59:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:59:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:59:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:59:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:59:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:59:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:59:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:59:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:59:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:59:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:59:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:59:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:59:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:59:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:59:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:59:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:59:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:59:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:59:16,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:59:16,356 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:59:16,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:59:16 BoogieIcfgContainer [2020-09-24 17:59:16,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:59:16,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:59:16,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:59:16,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:59:16,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:59:14" (1/3) ... [2020-09-24 17:59:16,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a637c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:59:16, skipping insertion in model container [2020-09-24 17:59:16,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:14" (2/3) ... [2020-09-24 17:59:16,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a637c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:59:16, skipping insertion in model container [2020-09-24 17:59:16,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:59:16" (3/3) ... [2020-09-24 17:59:16,374 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-24 17:59:16,387 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:59:16,401 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:59:16,427 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:59:16,464 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:59:16,464 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:59:16,464 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:59:16,464 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:59:16,465 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:59:16,465 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:59:16,465 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:59:16,465 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:59:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-24 17:59:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 17:59:16,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:16,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:59:16,520 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:16,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-24 17:59:16,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:16,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992819900] [2020-09-24 17:59:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:21,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:21,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:59:21,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:21,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-24 17:59:21,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:21,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 17:59:21,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:21,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:59:22,493 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:22,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 17:59:22,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:22,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:22,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:22,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:22,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:22,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:22,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:22,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:22,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:22,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:22,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:22,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 17:59:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:22,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:22,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:22,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:59:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:22,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:22,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:22,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:22,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:22,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:22,804 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 17:59:22,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992819900] [2020-09-24 17:59:22,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:22,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:59:22,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017418562] [2020-09-24 17:59:22,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:59:22,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:22,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:59:22,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:59:22,845 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 4 states. [2020-09-24 17:59:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:24,279 INFO L93 Difference]: Finished difference Result 500 states and 593 transitions. [2020-09-24 17:59:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:59:24,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 17:59:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:24,316 INFO L225 Difference]: With dead ends: 500 [2020-09-24 17:59:24,316 INFO L226 Difference]: Without dead ends: 317 [2020-09-24 17:59:24,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:59:24,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-24 17:59:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-24 17:59:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 17:59:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 293 transitions. [2020-09-24 17:59:24,444 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 293 transitions. Word has length 148 [2020-09-24 17:59:24,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:24,445 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 293 transitions. [2020-09-24 17:59:24,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:59:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 293 transitions. [2020-09-24 17:59:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 17:59:24,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:24,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:59:24,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:59:24,451 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:24,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:24,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1462569600, now seen corresponding path program 1 times [2020-09-24 17:59:24,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:24,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980851946] [2020-09-24 17:59:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:24,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:25,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:26,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:28,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:29,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:29,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 17:59:29,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 17:59:29,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 17:59:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:59:29,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:30,019 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:30,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:30,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-24 17:59:30,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 17:59:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:30,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:30,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:30,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:30,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:30,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:30,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:59:30,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:30,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:30,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:30,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:30,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:30,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:30,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:59:30,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:59:30,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:59:30,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 17:59:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:30,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:30,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:30,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:30,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:30,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:30,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:30,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:30,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:30,545 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 17:59:30,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980851946] [2020-09-24 17:59:30,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:30,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:59:30,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436650930] [2020-09-24 17:59:30,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:59:30,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:30,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:59:30,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:59:30,552 INFO L87 Difference]: Start difference. First operand 268 states and 293 transitions. Second operand 5 states. [2020-09-24 17:59:31,178 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:32,323 INFO L93 Difference]: Finished difference Result 470 states and 544 transitions. [2020-09-24 17:59:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:59:32,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 17:59:32,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:32,334 INFO L225 Difference]: With dead ends: 470 [2020-09-24 17:59:32,334 INFO L226 Difference]: Without dead ends: 317 [2020-09-24 17:59:32,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:59:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-24 17:59:32,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-24 17:59:32,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 17:59:32,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 292 transitions. [2020-09-24 17:59:32,418 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 292 transitions. Word has length 149 [2020-09-24 17:59:32,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:32,419 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 292 transitions. [2020-09-24 17:59:32,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:59:32,420 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 292 transitions. [2020-09-24 17:59:32,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 17:59:32,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:32,423 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] [2020-09-24 17:59:32,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:59:32,424 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:32,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2042254420, now seen corresponding path program 1 times [2020-09-24 17:59:32,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:32,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204744792] [2020-09-24 17:59:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:35,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:35,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:37,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:37,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 17:59:37,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 17:59:37,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 17:59:37,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:37,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:37,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 17:59:37,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:59:37,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:59:37,884 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:37,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:38,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 17:59:38,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:38,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:38,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:38,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:38,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:38,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:38,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:38,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:38,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 17:59:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:59:38,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:59:38,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 17:59:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:59:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:59:38,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:59:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:59:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:38,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:59:38,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:59:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:38,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:38,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 17:59:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:38,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:59:38,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 17:59:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:38,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:38,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:38,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:38,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:38,505 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 17:59:38,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204744792] [2020-09-24 17:59:38,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:38,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:59:38,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301374707] [2020-09-24 17:59:38,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:59:38,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:38,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:59:38,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:59:38,512 INFO L87 Difference]: Start difference. First operand 268 states and 292 transitions. Second operand 7 states. [2020-09-24 17:59:39,064 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:40,613 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:42,211 INFO L93 Difference]: Finished difference Result 651 states and 782 transitions. [2020-09-24 17:59:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 17:59:42,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-24 17:59:42,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:42,222 INFO L225 Difference]: With dead ends: 651 [2020-09-24 17:59:42,222 INFO L226 Difference]: Without dead ends: 498 [2020-09-24 17:59:42,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:59:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-09-24 17:59:42,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 409. [2020-09-24 17:59:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-24 17:59:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 457 transitions. [2020-09-24 17:59:42,296 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 457 transitions. Word has length 171 [2020-09-24 17:59:42,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:42,297 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 457 transitions. [2020-09-24 17:59:42,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:59:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 457 transitions. [2020-09-24 17:59:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 17:59:42,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:42,300 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] [2020-09-24 17:59:42,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:59:42,300 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:42,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:42,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1881304255, now seen corresponding path program 1 times [2020-09-24 17:59:42,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:42,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735670375] [2020-09-24 17:59:42,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:42,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:43,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:43,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:45,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 17:59:47,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 17:59:47,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 17:59:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:59:47,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,655 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:47,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:47,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 17:59:47,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:47,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:47,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:47,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:47,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:47,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:47,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:47,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:47,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:47,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 17:59:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:59:47,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:59:47,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-24 17:59:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:59:47,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:59:47,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:59:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:59:47,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:59:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:59:47,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:47,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:47,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:59:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:47,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:47,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:47,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 17:59:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:47,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:47,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 17:59:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:47,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:47,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:47,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:47,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:47,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:47,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:47,984 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 17:59:47,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735670375] [2020-09-24 17:59:47,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:47,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:59:47,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52790419] [2020-09-24 17:59:47,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:59:47,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:47,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:59:47,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:59:47,987 INFO L87 Difference]: Start difference. First operand 409 states and 457 transitions. Second operand 6 states. [2020-09-24 17:59:48,808 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:50,255 INFO L93 Difference]: Finished difference Result 681 states and 772 transitions. [2020-09-24 17:59:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:59:50,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-09-24 17:59:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:50,260 INFO L225 Difference]: With dead ends: 681 [2020-09-24 17:59:50,260 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 17:59:50,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:59:50,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 17:59:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 382. [2020-09-24 17:59:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-24 17:59:50,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 414 transitions. [2020-09-24 17:59:50,346 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 414 transitions. Word has length 186 [2020-09-24 17:59:50,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:50,346 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 414 transitions. [2020-09-24 17:59:50,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:59:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 414 transitions. [2020-09-24 17:59:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 17:59:50,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:50,349 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, 1] [2020-09-24 17:59:50,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:59:50,350 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:50,350 INFO L82 PathProgramCache]: Analyzing trace with hash -991114482, now seen corresponding path program 1 times [2020-09-24 17:59:50,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:50,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748654894] [2020-09-24 17:59:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:51,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:52,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 17:59:55,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 17:59:55,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:59:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 17:59:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 17:59:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:55,735 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:55,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:55,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 17:59:55,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:55,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:55,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:55,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:55,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:55,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:55,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:55,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:55,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:55,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:55,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:55,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:55,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:55,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:55,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:55,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 17:59:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:55,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:59:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:59:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 17:59:56,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:59:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:59:56,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 17:59:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:59:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:59:56,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 17:59:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 17:59:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:59:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:59:56,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:56,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:59:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:56,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 17:59:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:56,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:56,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 17:59:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:56,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:56,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:56,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,167 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 17:59:56,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748654894] [2020-09-24 17:59:56,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:56,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:59:56,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155216423] [2020-09-24 17:59:56,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:59:56,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:56,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:59:56,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:59:56,170 INFO L87 Difference]: Start difference. First operand 382 states and 414 transitions. Second operand 10 states. [2020-09-24 17:59:56,724 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:58,472 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:58,792 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:59:59,143 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:00:00,068 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:00:00,397 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 18:00:00,767 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191