/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=BIGGEST --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_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:08:05,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:08:05,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:08:05,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:08:05,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:08:05,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:08:05,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:08:05,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:08:05,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:08:05,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:08:05,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:08:05,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:08:05,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:08:05,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:08:05,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:08:05,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:08:05,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:08:05,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:08:05,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:08:05,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:08:05,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:08:05,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:08:05,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:08:05,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:08:05,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:08:05,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:08:05,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:08:05,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:08:05,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:08:05,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:08:05,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:08:05,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:08:05,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:08:05,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:08:05,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:08:05,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:08:05,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:08:05,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:08:05,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:08:05,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:08:05,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:08:05,820 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 20:08:05,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:08:05,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:08:05,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:08:05,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:08:05,848 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:08:05,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:08:05,849 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:08:05,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:08:05,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:08:05,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:08:05,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:08:05,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:08:05,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:08:05,850 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:08:05,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:08:05,851 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:08:05,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:08:05,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:08:05,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:08:05,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:08:05,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:08:05,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:08:05,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:08:05,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:08:05,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:08:05,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:08:05,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:08:05,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:08:05,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:08:05,854 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:08:06,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:08:06,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:08:06,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:08:06,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:08:06,376 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:08:06,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-24 20:08:06,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e322ac994/5e88560970744b94b831cad9e751dec6/FLAG5b717c1e6 [2020-09-24 20:08:07,136 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:08:07,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-24 20:08:07,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e322ac994/5e88560970744b94b831cad9e751dec6/FLAG5b717c1e6 [2020-09-24 20:08:07,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e322ac994/5e88560970744b94b831cad9e751dec6 [2020-09-24 20:08:07,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:08:07,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:08:07,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:08:07,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:08:07,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:08:07,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:08:07" (1/1) ... [2020-09-24 20:08:07,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a9d3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:07, skipping insertion in model container [2020-09-24 20:08:07,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:08:07" (1/1) ... [2020-09-24 20:08:07,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:08:07,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:08:08,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:08:08,047 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:08:08,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:08:08,176 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:08:08,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08 WrapperNode [2020-09-24 20:08:08,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:08:08,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:08:08,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:08:08,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:08:08,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (1/1) ... [2020-09-24 20:08:08,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:08:08,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:08:08,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:08:08,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:08:08,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (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 20:08:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:08:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:08:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:08:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:08:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:08:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:08:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:08:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:08:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:08:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:08:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:08:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:08:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:08:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:08:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:08:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:08:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:08:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:08:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:08:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:08:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:08:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:08:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:08:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:08:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:08:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:08:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:08:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:08:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:08:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:08:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:08:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:08:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:08:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:08:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:08:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:08:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:08:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:08:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:08:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:08:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:08:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:08:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:08:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:08:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:08:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:08:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:08:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:08:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:08:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:08:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:08:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:08:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:08:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:08:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:08:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:08:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:08:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:08:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:08:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:08:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:08:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:08:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:08:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:08:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:08:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:08:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:08:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:08:09,591 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:08:09,592 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:08:09,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:08:09 BoogieIcfgContainer [2020-09-24 20:08:09,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:08:09,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:08:09,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:08:09,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:08:09,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:08:07" (1/3) ... [2020-09-24 20:08:09,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad8966a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:08:09, skipping insertion in model container [2020-09-24 20:08:09,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:08" (2/3) ... [2020-09-24 20:08:09,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad8966a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:08:09, skipping insertion in model container [2020-09-24 20:08:09,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:08:09" (3/3) ... [2020-09-24 20:08:09,612 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-09-24 20:08:09,621 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:08:09,631 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:08:09,650 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:08:09,681 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:08:09,682 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:08:09,682 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:08:09,682 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:08:09,682 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:08:09,682 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:08:09,683 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:08:09,683 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:08:09,713 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-24 20:08:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:08:09,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:09,733 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 20:08:09,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:09,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:09,741 INFO L82 PathProgramCache]: Analyzing trace with hash -231713174, now seen corresponding path program 1 times [2020-09-24 20:08:09,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:09,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759653136] [2020-09-24 20:08:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:10,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:10,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:11,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:12,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:12,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:15,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:15,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:08:15,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:08:15,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 20:08:15,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:08:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:08:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 20:08:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:08:15,670 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:15,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:16,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-24 20:08:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:08:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:16,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:16,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:16,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:16,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:16,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:16,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:16,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:16,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:16,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:16,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:16,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:16,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:16,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:08:16,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:16,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:16,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:16,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:16,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:16,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:16,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:16,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:08:16,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:16,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:16,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:08:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:16,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:16,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:16,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:16,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:08:16,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:16,297 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 20:08:16,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759653136] [2020-09-24 20:08:16,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:16,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:08:16,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357067632] [2020-09-24 20:08:16,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:08:16,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:16,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:08:16,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:08:16,344 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-24 20:08:16,967 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:18,321 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:18,642 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:08:18,965 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:19,243 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:19,555 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:20,355 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:20,694 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:21,098 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:22,497 INFO L93 Difference]: Finished difference Result 600 states and 746 transitions. [2020-09-24 20:08:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:08:22,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:08:22,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:22,529 INFO L225 Difference]: With dead ends: 600 [2020-09-24 20:08:22,529 INFO L226 Difference]: Without dead ends: 399 [2020-09-24 20:08:22,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:08:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-24 20:08:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 357. [2020-09-24 20:08:22,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-24 20:08:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 409 transitions. [2020-09-24 20:08:22,684 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 409 transitions. Word has length 142 [2020-09-24 20:08:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:22,685 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 409 transitions. [2020-09-24 20:08:22,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:08:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 409 transitions. [2020-09-24 20:08:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 20:08:22,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:22,691 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 20:08:22,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:08:22,692 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:22,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:22,693 INFO L82 PathProgramCache]: Analyzing trace with hash 285397142, now seen corresponding path program 1 times [2020-09-24 20:08:22,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:22,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316890923] [2020-09-24 20:08:22,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:22,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:22,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:27,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:27,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 20:08:27,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:08:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 20:08:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:08:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:08:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-24 20:08:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,130 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:28,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:28,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 20:08:28,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:08:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:28,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:28,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:28,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:28,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:28,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:28,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:28,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:28,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:28,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:28,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:28,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:28,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 20:08:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:28,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:08:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 20:08:28,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:08:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:28,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 20:08:28,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:28,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:08:28,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:28,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 20:08:28,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:08:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:08:28,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:28,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:28,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:28,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:28,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:28,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:08:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:28,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:28,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:28,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:28,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 20:08:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:28,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:28,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:28,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:28,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:28,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:29,083 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 20:08:29,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316890923] [2020-09-24 20:08:29,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:29,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 20:08:29,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061566267] [2020-09-24 20:08:29,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:08:29,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:29,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:08:29,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:08:29,090 INFO L87 Difference]: Start difference. First operand 357 states and 409 transitions. Second operand 14 states. [2020-09-24 20:08:29,594 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:30,940 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-09-24 20:08:31,627 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 20:08:32,007 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:32,363 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:32,689 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:33,278 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:08:33,663 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 20:08:34,012 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:34,352 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:34,689 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:08:35,047 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:35,346 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:35,715 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:36,066 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:36,688 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:37,045 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:37,395 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:37,750 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:38,142 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:38,463 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:08:38,763 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:40,760 INFO L93 Difference]: Finished difference Result 978 states and 1282 transitions. [2020-09-24 20:08:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 20:08:40,761 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 181 [2020-09-24 20:08:40,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:40,777 INFO L225 Difference]: With dead ends: 978 [2020-09-24 20:08:40,777 INFO L226 Difference]: Without dead ends: 685 [2020-09-24 20:08:40,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=224, Invalid=1182, Unknown=0, NotChecked=0, Total=1406 [2020-09-24 20:08:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-09-24 20:08:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 573. [2020-09-24 20:08:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 20:08:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 661 transitions. [2020-09-24 20:08:40,925 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 661 transitions. Word has length 181 [2020-09-24 20:08:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:40,928 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 661 transitions. [2020-09-24 20:08:40,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:08:40,928 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 661 transitions. [2020-09-24 20:08:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 20:08:40,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:40,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:40,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:08:40,936 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:40,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1913445490, now seen corresponding path program 1 times [2020-09-24 20:08:40,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:40,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714472659] [2020-09-24 20:08:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:41,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:41,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:41,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:41,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 20:08:46,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:08:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-24 20:08:46,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 20:08:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 20:08:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,316 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:46,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:46,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 20:08:46,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:46,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:46,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:46,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:46,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:46,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:46,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:46,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:46,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:46,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:46,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:46,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:46,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:08:46,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:46,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:08:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:08:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:08:46,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:08:46,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:08:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:08:46,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:08:46,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:08:46,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:08:46,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:46,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:08:46,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:08:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:46,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:08:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:46,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:08:46,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 20:08:46,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:08:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:46,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:46,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:46,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 20:08:46,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:08:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:46,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:46,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:46,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:46,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:46,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:08:46,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:08:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:47,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:47,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:47,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:47,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:47,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:47,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:08:47,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:47,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:47,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:47,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:47,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:47,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:47,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 20:08:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:47,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:47,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:47,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:47,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:47,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:47,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:47,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-24 20:08:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:47,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:47,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:47,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:47,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:47,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:47,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:47,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:47,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:47,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:08:47,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714472659] [2020-09-24 20:08:47,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:08:47,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 20:08:47,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842577886] [2020-09-24 20:08:47,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 20:08:47,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:47,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 20:08:47,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:08:47,203 INFO L87 Difference]: Start difference. First operand 573 states and 661 transitions. Second operand 16 states. [2020-09-24 20:08:47,987 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:48,800 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:08:49,270 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:49,645 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:50,416 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 20:08:51,094 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 20:08:51,455 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:52,066 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 20:08:52,415 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:53,073 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 20:08:53,432 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:54,050 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 20:08:54,417 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:54,727 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:55,044 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:55,386 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:55,799 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:56,210 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:56,547 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188