/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=SHALLOWEST --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_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:36:02,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:36:02,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:36:02,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:36:02,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:36:02,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:36:02,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:36:02,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:36:02,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:36:02,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:36:02,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:36:02,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:36:02,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:36:02,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:36:02,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:36:02,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:36:02,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:36:02,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:36:02,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:36:02,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:36:02,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:36:02,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:36:02,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:36:02,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:36:02,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:36:02,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:36:02,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:36:02,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:36:02,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:36:02,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:36:02,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:36:02,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:36:02,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:36:02,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:36:02,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:36:02,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:36:02,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:36:02,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:36:02,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:36:02,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:36:02,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:36:02,276 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 23:36:02,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:36:02,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:36:02,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:36:02,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:36:02,325 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:36:02,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:36:02,325 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:36:02,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:36:02,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:36:02,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:36:02,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:36:02,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:36:02,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:36:02,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:36:02,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:36:02,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:36:02,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:36:02,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:36:02,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:36:02,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:36:02,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:36:02,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:36:02,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:36:02,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:36:02,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:36:02,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:36:02,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:36:02,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:36:02,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:36:02,331 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:36:02,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:36:02,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:36:02,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:36:02,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:36:02,847 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:36:02,848 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-24 23:36:02,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1faf8c4cd/c01a03114ff045f4a2db28578a96d0aa/FLAG7781e8a36 [2020-09-24 23:36:03,550 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:36:03,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-24 23:36:03,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1faf8c4cd/c01a03114ff045f4a2db28578a96d0aa/FLAG7781e8a36 [2020-09-24 23:36:03,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1faf8c4cd/c01a03114ff045f4a2db28578a96d0aa [2020-09-24 23:36:03,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:36:03,832 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:36:03,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:03,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:36:03,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:36:03,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:03" (1/1) ... [2020-09-24 23:36:03,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:03, skipping insertion in model container [2020-09-24 23:36:03,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:03" (1/1) ... [2020-09-24 23:36:03,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:36:03,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:36:04,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:04,332 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:36:04,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:04,561 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:36:04,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04 WrapperNode [2020-09-24 23:36:04,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:04,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:36:04,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:36:04,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:36:04,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (1/1) ... [2020-09-24 23:36:04,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:36:04,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:36:04,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:36:04,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:36:04,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (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 23:36:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:36:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:36:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:36:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:36:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:36:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:36:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:36:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:36:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:36:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:36:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:36:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:36:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:36:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:36:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:36:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:36:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:36:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:36:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:36:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:36:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:36:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:36:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:36:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:36:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:36:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:36:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:36:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:36:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:36:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:36:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:36:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:36:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:36:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:36:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:36:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:36:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:36:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:36:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:36:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:36:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:36:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:36:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:36:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:36:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:36:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:36:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:36:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:36:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:36:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:36:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:36:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:36:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:36:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:36:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:36:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:36:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:36:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:36:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:36:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:36:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:36:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:36:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:36:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:36:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:36:05,906 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:36:05,906 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:36:05,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:05 BoogieIcfgContainer [2020-09-24 23:36:05,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:36:05,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:36:05,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:36:05,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:36:05,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:36:03" (1/3) ... [2020-09-24 23:36:05,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545d8b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:05, skipping insertion in model container [2020-09-24 23:36:05,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:04" (2/3) ... [2020-09-24 23:36:05,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545d8b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:05, skipping insertion in model container [2020-09-24 23:36:05,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:05" (3/3) ... [2020-09-24 23:36:05,924 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-24 23:36:05,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:36:05,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:36:05,966 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:36:06,000 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:36:06,000 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:36:06,001 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:36:06,001 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:36:06,001 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:36:06,001 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:36:06,001 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:36:06,001 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:36:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-24 23:36:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:36:06,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:06,052 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] [2020-09-24 23:36:06,053 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:06,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:06,061 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-24 23:36:06,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:06,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086616620] [2020-09-24 23:36:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:06,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:08,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:11,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:11,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:36:11,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:36:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 23:36:11,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:11,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:36:11,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:36:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:36:11,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:36:11,954 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:11,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-24 23:36:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:36:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:12,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:12,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:12,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:36:12,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:12,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:36:12,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:12,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:12,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:12,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:12,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:36:12,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:12,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:12,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:36:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:12,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:12,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:12,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:12,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:36:12,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:36:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:12,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:12,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:36:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:12,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:12,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:12,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:12,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:12,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:36:12,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:12,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:12,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:12,683 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 23:36:12,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086616620] [2020-09-24 23:36:12,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:12,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:36:12,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350942951] [2020-09-24 23:36:12,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:36:12,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:12,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:36:12,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:36:12,735 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 4 states. [2020-09-24 23:36:13,637 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:16,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:16,337 INFO L93 Difference]: Finished difference Result 683 states and 821 transitions. [2020-09-24 23:36:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:36:16,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 23:36:16,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:16,377 INFO L225 Difference]: With dead ends: 683 [2020-09-24 23:36:16,377 INFO L226 Difference]: Without dead ends: 479 [2020-09-24 23:36:16,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:36:16,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-24 23:36:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 406. [2020-09-24 23:36:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-24 23:36:16,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 449 transitions. [2020-09-24 23:36:16,647 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 449 transitions. Word has length 153 [2020-09-24 23:36:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:16,650 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 449 transitions. [2020-09-24 23:36:16,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:36:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 449 transitions. [2020-09-24 23:36:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 23:36:16,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:16,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:16,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:36:16,666 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:16,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:16,667 INFO L82 PathProgramCache]: Analyzing trace with hash -245489953, now seen corresponding path program 1 times [2020-09-24 23:36:16,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:16,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286380187] [2020-09-24 23:36:16,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:16,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:16,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:17,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:20,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:21,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:21,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:21,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 23:36:21,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:36:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:36:21,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:21,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:36:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:36:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 23:36:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,034 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:22,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:22,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 23:36:22,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:36:22,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:22,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:36:22,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:22,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:22,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:22,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:22,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:22,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:22,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:22,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:36:22,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:22,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:36:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:36:22,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:36:22,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:36:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:36:22,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 29 [2020-09-24 23:36:22,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:22,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:22,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:36:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:22,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:22,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:36:22,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:36:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:22,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:22,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:22,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:36:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:22,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:22,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:22,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:22,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:22,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:22,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:22,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:22,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:22,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:22,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:22,539 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 23:36:22,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286380187] [2020-09-24 23:36:22,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:22,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:36:22,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534738668] [2020-09-24 23:36:22,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:36:22,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:22,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:36:22,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:36:22,545 INFO L87 Difference]: Start difference. First operand 406 states and 449 transitions. Second operand 6 states. [2020-09-24 23:36:23,104 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:24,716 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:36:25,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:25,811 INFO L93 Difference]: Finished difference Result 1097 states and 1317 transitions. [2020-09-24 23:36:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:36:25,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 23:36:25,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:25,819 INFO L225 Difference]: With dead ends: 1097 [2020-09-24 23:36:25,819 INFO L226 Difference]: Without dead ends: 801 [2020-09-24 23:36:25,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:36:25,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2020-09-24 23:36:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 683. [2020-09-24 23:36:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-09-24 23:36:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 772 transitions. [2020-09-24 23:36:25,936 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 772 transitions. Word has length 162 [2020-09-24 23:36:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:25,937 INFO L479 AbstractCegarLoop]: Abstraction has 683 states and 772 transitions. [2020-09-24 23:36:25,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:36:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 772 transitions. [2020-09-24 23:36:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 23:36:25,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:25,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:25,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:36:25,940 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:25,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:25,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-09-24 23:36:25,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:25,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942931673] [2020-09-24 23:36:25,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:27,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:27,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 23:36:27,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:27,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1712 [2020-09-24 23:36:27,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:36:27,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:36:27,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 23:36:27,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:28,133 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:28,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:28,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 23:36:28,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:36:28,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:36:28,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:28,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:36:28,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:28,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:28,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:28,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:36:28,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:28,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:28,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:28,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:28,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:36:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:36:28,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:28,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:36:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:36:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:28,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:28,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:28,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:36:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:28,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:36:28,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:36:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 23:36:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:28,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:28,688 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 23:36:28,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942931673] [2020-09-24 23:36:28,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:28,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:36:28,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722970567] [2020-09-24 23:36:28,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:36:28,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:28,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:36:28,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:36:28,694 INFO L87 Difference]: Start difference. First operand 683 states and 772 transitions. Second operand 10 states. [2020-09-24 23:36:29,353 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:30,996 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:36:31,610 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 23:36:31,972 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:36:32,336 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:32,645 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:36:32,941 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:36:33,207 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:36:33,715 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:36:35,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:35,715 INFO L93 Difference]: Finished difference Result 1893 states and 2365 transitions. [2020-09-24 23:36:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:36:35,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 23:36:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:35,725 INFO L225 Difference]: With dead ends: 1893 [2020-09-24 23:36:35,725 INFO L226 Difference]: Without dead ends: 1242 [2020-09-24 23:36:35,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:36:35,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2020-09-24 23:36:35,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1141. [2020-09-24 23:36:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-09-24 23:36:35,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1305 transitions. [2020-09-24 23:36:35,886 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1305 transitions. Word has length 172 [2020-09-24 23:36:35,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:35,887 INFO L479 AbstractCegarLoop]: Abstraction has 1141 states and 1305 transitions. [2020-09-24 23:36:35,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:36:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1305 transitions. [2020-09-24 23:36:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 23:36:35,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:35,891 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] [2020-09-24 23:36:35,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:36:35,892 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:35,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:35,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-24 23:36:35,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:35,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199910469] [2020-09-24 23:36:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:36:35,959 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:36:35,960 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:36:35,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:36:35,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:36:35 BoogieIcfgContainer [2020-09-24 23:36:35,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:36:35,998 INFO L168 Benchmark]: Toolchain (without parser) took 32169.70 ms. Allocated memory was 142.1 MB in the beginning and 576.2 MB in the end (delta: 434.1 MB). Free memory was 104.5 MB in the beginning and 172.3 MB in the end (delta: -67.9 MB). Peak memory consumption was 366.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:35,999 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 23:36:36,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.07 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 173.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:36,001 INFO L168 Benchmark]: Boogie Preprocessor took 95.94 ms. Allocated memory is still 205.5 MB. Free memory was 173.4 MB in the beginning and 169.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:36,002 INFO L168 Benchmark]: RCFGBuilder took 1255.01 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 169.3 MB in the beginning and 170.2 MB in the end (delta: -825.2 kB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:36,003 INFO L168 Benchmark]: TraceAbstraction took 30080.46 ms. Allocated memory was 234.4 MB in the beginning and 576.2 MB in the end (delta: 341.8 MB). Free memory was 170.2 MB in the beginning and 172.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 339.7 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:36,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.07 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 173.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.94 ms. Allocated memory is still 205.5 MB. Free memory was 173.4 MB in the beginning and 169.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1255.01 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 169.3 MB in the beginning and 170.2 MB in the end (delta: -825.2 kB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30080.46 ms. Allocated memory was 234.4 MB in the beginning and 576.2 MB in the end (delta: 341.8 MB). Free memory was 170.2 MB in the beginning and 172.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 339.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 853 SDtfs, 1647 SDslu, 1052 SDs, 0 SdLazy, 2565 SolverSat, 586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1141occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 292 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 484 ConstructedInterpolants, 0 QuantifiedInterpolants, 221680 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...