/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:55:40,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:55:40,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:55:40,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:55:40,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:55:40,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:55:40,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:55:40,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:55:40,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:55:40,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:55:40,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:55:40,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:55:40,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:55:40,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:55:40,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:55:40,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:55:40,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:55:40,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:55:40,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:55:40,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:55:40,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:55:40,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:55:40,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:55:40,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:55:40,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:55:40,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:55:40,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:55:40,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:55:40,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:55:40,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:55:40,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:55:40,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:55:40,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:55:40,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:55:40,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:55:40,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:55:40,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:55:40,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:55:40,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:55:40,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:55:40,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:55:40,192 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 16:55:40,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:55:40,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:55:40,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:55:40,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:55:40,222 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:55:40,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:55:40,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:55:40,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:55:40,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:55:40,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:55:40,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:55:40,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:55:40,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:55:40,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:55:40,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:55:40,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:55:40,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:55:40,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:55:40,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:55:40,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:55:40,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:55:40,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:55:40,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:55:40,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:55:40,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:55:40,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:55:40,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:55:40,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:55:40,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:55:40,227 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;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;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;log-additional-information=true; [2020-09-24 16:55:40,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:55:40,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:55:40,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:55:40,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:55:40,736 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:55:40,738 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 16:55:40,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e204defe6/ead701628590465c8d9c7d1e5fb3e380/FLAG9315aeb9c [2020-09-24 16:55:41,426 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:55:41,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-24 16:55:41,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e204defe6/ead701628590465c8d9c7d1e5fb3e380/FLAG9315aeb9c [2020-09-24 16:55:41,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e204defe6/ead701628590465c8d9c7d1e5fb3e380 [2020-09-24 16:55:41,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:55:41,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:55:41,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:55:41,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:55:41,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:55:41,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:41" (1/1) ... [2020-09-24 16:55:41,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14924135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:41, skipping insertion in model container [2020-09-24 16:55:41,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:41" (1/1) ... [2020-09-24 16:55:41,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:55:41,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:55:42,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:55:42,314 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:55:42,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:55:42,457 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:55:42,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42 WrapperNode [2020-09-24 16:55:42,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:55:42,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:55:42,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:55:42,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:55:42,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (1/1) ... [2020-09-24 16:55:42,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:55:42,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:55:42,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:55:42,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:55:42,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (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 16:55:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:55:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:55:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:55:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:55:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:55:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:55:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:55:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:55:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:55:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 16:55:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:55:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:55:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:55:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:55:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:55:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:55:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:55:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:55:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:55:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:55:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:55:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:55:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:55:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:55:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:55:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:55:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:55:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:55:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:55:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:55:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:55:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:55:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:55:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:55:42,649 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:55:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:55:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:55:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:55:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:55:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:55:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:55:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:55:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:55:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:55:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:55:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:55:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:55:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:55:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:55:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:55:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:55:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:55:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:55:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:55:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:55:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:55:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:55:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:55:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:55:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:55:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:55:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:55:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:55:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:55:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:55:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:55:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:55:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:55:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:55:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:55:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:55:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:55:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:55:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:55:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:55:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:55:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:55:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:55:43,858 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:55:43,859 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:55:43,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:43 BoogieIcfgContainer [2020-09-24 16:55:43,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:55:43,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:55:43,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:55:43,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:55:43,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:55:41" (1/3) ... [2020-09-24 16:55:43,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a448656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:43, skipping insertion in model container [2020-09-24 16:55:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:42" (2/3) ... [2020-09-24 16:55:43,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a448656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:43, skipping insertion in model container [2020-09-24 16:55:43,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:43" (3/3) ... [2020-09-24 16:55:43,887 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-24 16:55:43,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:55:43,914 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:55:43,938 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:55:43,985 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:55:43,985 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:55:43,985 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:55:43,986 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:55:43,986 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:55:43,987 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:55:43,987 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:55:43,988 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:55:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 16:55:44,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:55:44,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:55:44,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:55:44,080 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:55:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:55:44,090 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-24 16:55:44,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:55:44,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823287913] [2020-09-24 16:55:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:55:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:44,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:46,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:47,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:57,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:58,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:58,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:55:58,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:55:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14346 [2020-09-24 16:55:58,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:55:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 16:55:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:55:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:55:59,374 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:55:59,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:55:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:55:59,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 16:55:59,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:59,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:55:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:59,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:55:59,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:59,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:59,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:59,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:55:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:59,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:55:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:59,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:55:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:59,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:55:59,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:59,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:55:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:55:59,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:55:59,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:55:59,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:55:59,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:59,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:55:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:55:59,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:55:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:59,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:55:59,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:55:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:55:59,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:55:59,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:55:59,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:55:59,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:55:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:55:59,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:55:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:55:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:55:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:55:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:55:59,815 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 16:55:59,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823287913] [2020-09-24 16:55:59,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:55:59,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:55:59,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135606792] [2020-09-24 16:55:59,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:55:59,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:55:59,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:55:59,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:55:59,856 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-24 16:56:00,484 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:56:01,802 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:56:02,150 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:56:02,495 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:56:02,848 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:56:03,174 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:56:03,933 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:56:04,244 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:56:04,617 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:56:05,898 INFO L93 Difference]: Finished difference Result 613 states and 760 transitions. [2020-09-24 16:56:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:56:05,906 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:56:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:56:05,946 INFO L225 Difference]: With dead ends: 613 [2020-09-24 16:56:05,946 INFO L226 Difference]: Without dead ends: 408 [2020-09-24 16:56:05,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:56:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-24 16:56:06,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 365. [2020-09-24 16:56:06,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 16:56:06,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 417 transitions. [2020-09-24 16:56:06,087 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 417 transitions. Word has length 142 [2020-09-24 16:56:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:56:06,088 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 417 transitions. [2020-09-24 16:56:06,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:56:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 417 transitions. [2020-09-24 16:56:06,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 16:56:06,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:56:06,094 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] [2020-09-24 16:56:06,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:56:06,094 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:56:06,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:56:06,095 INFO L82 PathProgramCache]: Analyzing trace with hash 611743820, now seen corresponding path program 1 times [2020-09-24 16:56:06,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:56:06,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628646619] [2020-09-24 16:56:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:56:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:06,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:07,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:17,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:17,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11612 [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:56:17,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,080 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:56:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:56:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:56:18,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 16:56:18,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:56:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:18,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:56:18,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:56:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:18,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:56:18,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:56:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:18,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:56:18,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:56:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:18,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:56:18,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:56:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:56:18,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:56:18,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 16:56:18,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:56:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:56:18,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:56:18,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:18,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:56:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:56:18,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 16:56:18,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:56:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:56:18,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:56:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:18,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:56:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:56:18,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 16:56:18,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:56:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:56:18,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:56:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:56:18,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:56:18,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:18,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:56:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:56:18,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:18,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:56:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:56:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:18,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:18,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:56:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 16:56:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:18,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:18,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:18,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:18,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:56:18,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:56:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:18,671 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 16:56:18,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628646619] [2020-09-24 16:56:18,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:56:18,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:56:18,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352107172] [2020-09-24 16:56:18,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:56:18,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:56:18,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:56:18,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:56:18,677 INFO L87 Difference]: Start difference. First operand 365 states and 417 transitions. Second operand 10 states. [2020-09-24 16:56:19,460 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:20,552 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:20,855 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:56:21,172 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:56:21,491 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:21,806 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:56:22,101 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:56:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:56:22,918 INFO L93 Difference]: Finished difference Result 662 states and 788 transitions. [2020-09-24 16:56:22,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:56:22,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-09-24 16:56:22,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:56:22,922 INFO L225 Difference]: With dead ends: 662 [2020-09-24 16:56:22,923 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 16:56:22,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:56:22,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 16:56:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 353. [2020-09-24 16:56:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 16:56:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 391 transitions. [2020-09-24 16:56:22,980 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 391 transitions. Word has length 181 [2020-09-24 16:56:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:56:22,981 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 391 transitions. [2020-09-24 16:56:22,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:56:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 391 transitions. [2020-09-24 16:56:22,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 16:56:22,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:56:22,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:56:22,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:56:22,985 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:56:22,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:56:22,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1864396910, now seen corresponding path program 1 times [2020-09-24 16:56:22,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:56:22,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952935449] [2020-09-24 16:56:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:56:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:23,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:23,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:27,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:27,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 16:56:27,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:56:27,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4646 [2020-09-24 16:56:27,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:56:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 16:56:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:56:27,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:27,961 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:56:27,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:56:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:27,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:56:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 16:56:28,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:56:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:28,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:56:28,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:56:28,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:56:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:28,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:56:28,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:56:28,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:56:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:56:28,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:56:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:28,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:56:28,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:28,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 16:56:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:56:28,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:28,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:28,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:56:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:56:28,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 16:56:28,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:56:28,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:56:28,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:56:28,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:28,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:56:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:56:28,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 16:56:28,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:56:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:56:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:56:28,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:28,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:56:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:56:28,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 16:56:28,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:56:28,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:56:28,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:56:28,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:28,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:56:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:56:28,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:56:28,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:56:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:56:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:28,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:56:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:56:28,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:56:28,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:56:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 16:56:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:28,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:56:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:28,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 16:56:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:28,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:28,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:28,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:28,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:28,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:56:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:28,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:28,517 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 16:56:28,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952935449] [2020-09-24 16:56:28,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:56:28,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:56:28,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270092860] [2020-09-24 16:56:28,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:56:28,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:56:28,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:56:28,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:56:28,523 INFO L87 Difference]: Start difference. First operand 353 states and 391 transitions. Second operand 9 states. [2020-09-24 16:56:29,758 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:30,067 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:56:30,424 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:30,789 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:56:31,082 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187