/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:19:04,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:19:04,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:19:04,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:19:04,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:19:04,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:19:04,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:19:04,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:19:04,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:19:04,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:19:04,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:19:04,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:19:04,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:19:04,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:19:04,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:19:04,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:19:04,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:19:04,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:19:04,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:19:04,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:19:04,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:19:04,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:19:04,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:19:04,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:19:04,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:19:04,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:19:04,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:19:04,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:19:04,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:19:04,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:19:04,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:19:04,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:19:04,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:19:04,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:19:04,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:19:04,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:19:04,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:19:04,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:19:04,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:19:04,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:19:04,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:19:04,646 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 21:19:04,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:19:04,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:19:04,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:19:04,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:19:04,692 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:19:04,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:19:04,693 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:19:04,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:19:04,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:19:04,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:19:04,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:19:04,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:19:04,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:19:04,695 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:19:04,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:19:04,695 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:19:04,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:19:04,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:19:04,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:19:04,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:19:04,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:19:04,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:04,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:19:04,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:19:04,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:19:04,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:19:04,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:19:04,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:19:04,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:19:04,698 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:19:05,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:19:05,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:19:05,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:19:05,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:19:05,157 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:19:05,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-24 21:19:05,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f188221bb/c57fff2466924b9c8c4be856a8bb8d39/FLAG1e6de0368 [2020-09-24 21:19:05,830 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:19:05,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-24 21:19:05,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f188221bb/c57fff2466924b9c8c4be856a8bb8d39/FLAG1e6de0368 [2020-09-24 21:19:06,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f188221bb/c57fff2466924b9c8c4be856a8bb8d39 [2020-09-24 21:19:06,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:19:06,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:19:06,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:06,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:19:06,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:19:06,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06, skipping insertion in model container [2020-09-24 21:19:06,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:19:06,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:19:06,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:06,705 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:19:06,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:06,828 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:19:06,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06 WrapperNode [2020-09-24 21:19:06,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:06,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:19:06,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:19:06,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:19:06,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (1/1) ... [2020-09-24 21:19:06,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:19:06,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:19:06,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:19:06,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:19:06,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (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 21:19:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:19:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:19:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:19:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:19:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:19:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:19:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:19:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:19:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:19:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:19:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:19:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:19:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:19:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:19:07,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:19:07,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:19:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:19:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:19:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:19:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:19:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:19:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:19:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:19:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:19:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:19:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:19:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:19:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:19:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:19:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:19:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:19:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:19:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:19:07,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:19:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:19:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:19:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:19:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:19:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:19:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:19:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:19:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:19:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:19:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:19:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:19:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:19:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:19:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:19:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:19:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:19:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:19:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:19:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:19:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:19:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:19:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:19:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:19:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:19:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:19:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:19:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:19:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:19:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:19:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:19:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:19:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:19:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:19:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:19:08,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:19:08,289 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:19:08,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:08 BoogieIcfgContainer [2020-09-24 21:19:08,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:19:08,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:19:08,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:19:08,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:19:08,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:19:06" (1/3) ... [2020-09-24 21:19:08,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f9b25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:08, skipping insertion in model container [2020-09-24 21:19:08,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:06" (2/3) ... [2020-09-24 21:19:08,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f9b25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:08, skipping insertion in model container [2020-09-24 21:19:08,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:08" (3/3) ... [2020-09-24 21:19:08,305 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-24 21:19:08,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:19:08,328 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:19:08,352 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:19:08,386 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:19:08,387 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:19:08,387 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:19:08,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:19:08,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:19:08,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:19:08,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:19:08,388 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:19:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-24 21:19:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:19:08,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:08,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:08,439 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:08,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:08,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-09-24 21:19:08,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:08,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477446701] [2020-09-24 21:19:08,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:08,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:10,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:11,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:12,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:13,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:13,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:19:13,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:19:13,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 21:19:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:19:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:19:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 21:19:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:19:14,357 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:14,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:14,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-24 21:19:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:19:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:19:14,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:14,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:19:14,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:14,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:14,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:19:14,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:14,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:14,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:14,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:14,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:19:14,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:14,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:14,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:14,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:14,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:19:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:14,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:14,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:14,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:14,994 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 21:19:14,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477446701] [2020-09-24 21:19:14,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:14,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:19:14,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467892222] [2020-09-24 21:19:15,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:19:15,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:15,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:19:15,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:19:15,032 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 9 states. [2020-09-24 21:19:15,634 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:16,739 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:17,117 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:17,496 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:17,897 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:18,239 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:18,951 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:19,272 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:19,768 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:20,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:20,536 INFO L93 Difference]: Finished difference Result 582 states and 706 transitions. [2020-09-24 21:19:20,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:19:20,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 21:19:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:20,563 INFO L225 Difference]: With dead ends: 582 [2020-09-24 21:19:20,563 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 21:19:20,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:19:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 21:19:20,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 337. [2020-09-24 21:19:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-24 21:19:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 370 transitions. [2020-09-24 21:19:20,722 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 370 transitions. Word has length 148 [2020-09-24 21:19:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:20,732 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 370 transitions. [2020-09-24 21:19:20,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:19:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 370 transitions. [2020-09-24 21:19:20,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 21:19:20,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:20,748 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] [2020-09-24 21:19:20,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:19:20,749 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:20,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:20,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1949985502, now seen corresponding path program 1 times [2020-09-24 21:19:20,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:20,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218475245] [2020-09-24 21:19:20,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:20,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:21,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:22,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:25,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:25,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 21:19:25,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:19:25,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:19:25,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:19:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:19:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 21:19:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:26,175 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:26,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:26,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-24 21:19:26,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:19:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:26,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:26,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:26,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:26,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:26,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:26,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:26,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:26,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:26,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:19:26,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:26,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:26,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:26,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:26,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:26,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:26,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:26,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:26,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:19:26,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:26,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:19:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:26,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:26,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:26,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:26,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:19:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:26,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:26,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:26,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:26,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:26,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 21:19:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:26,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:26,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:26,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:26,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:26,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:19:26,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:26,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:26,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:26,806 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 21:19:26,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218475245] [2020-09-24 21:19:26,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:26,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:19:26,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110449920] [2020-09-24 21:19:26,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:19:26,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:26,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:19:26,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:19:26,811 INFO L87 Difference]: Start difference. First operand 337 states and 370 transitions. Second operand 11 states. [2020-09-24 21:19:27,390 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:28,923 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:29,260 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:19:29,646 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:30,001 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:30,325 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:31,175 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:31,494 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:31,864 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:33,180 INFO L93 Difference]: Finished difference Result 955 states and 1203 transitions. [2020-09-24 21:19:33,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 21:19:33,181 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-24 21:19:33,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:33,191 INFO L225 Difference]: With dead ends: 955 [2020-09-24 21:19:33,191 INFO L226 Difference]: Without dead ends: 733 [2020-09-24 21:19:33,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 21:19:33,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-09-24 21:19:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 482. [2020-09-24 21:19:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-24 21:19:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 543 transitions. [2020-09-24 21:19:33,291 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 543 transitions. Word has length 167 [2020-09-24 21:19:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:33,292 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 543 transitions. [2020-09-24 21:19:33,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:19:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 543 transitions. [2020-09-24 21:19:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 21:19:33,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:33,297 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, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:33,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:19:33,298 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:33,298 INFO L82 PathProgramCache]: Analyzing trace with hash -607359222, now seen corresponding path program 1 times [2020-09-24 21:19:33,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:33,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309832277] [2020-09-24 21:19:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:36,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 21:19:38,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:19:38,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 21:19:38,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:38,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 21:19:38,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:19:38,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:38,679 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:38,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:38,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 21:19:38,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:38,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:38,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:38,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:38,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:38,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:38,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:38,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:38,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:38,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:38,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:38,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:38,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:38,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:38,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:38,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:38,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:38,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:38,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:38,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:38,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:38,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:38,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:38,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:19:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:38,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 21:19:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:19:39,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:19:39,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 21:19:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:19:39,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:19:39,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:39,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:39,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:39,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:39,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 21:19:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:19:39,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:19:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:19:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:19:39,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 21:19:39,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:19:39,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:19:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:19:39,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:19:39,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:19:39,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:19:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:39,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:39,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:19:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 21:19:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:39,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 21:19:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:39,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:39,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:39,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 21:19:39,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309832277] [2020-09-24 21:19:39,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:39,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 21:19:39,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821508078] [2020-09-24 21:19:39,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:19:39,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:39,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:19:39,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:19:39,579 INFO L87 Difference]: Start difference. First operand 482 states and 543 transitions. Second operand 14 states. [2020-09-24 21:19:40,632 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:41,873 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:42,240 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:42,604 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:19:43,020 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:43,420 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:19:43,759 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:45,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:45,291 INFO L93 Difference]: Finished difference Result 1240 states and 1589 transitions. [2020-09-24 21:19:45,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 21:19:45,291 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 226 [2020-09-24 21:19:45,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:45,299 INFO L225 Difference]: With dead ends: 1240 [2020-09-24 21:19:45,299 INFO L226 Difference]: Without dead ends: 873 [2020-09-24 21:19:45,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=396, Invalid=1496, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 21:19:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-09-24 21:19:45,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 484. [2020-09-24 21:19:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-09-24 21:19:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 537 transitions. [2020-09-24 21:19:45,374 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 537 transitions. Word has length 226 [2020-09-24 21:19:45,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:45,375 INFO L479 AbstractCegarLoop]: Abstraction has 484 states and 537 transitions. [2020-09-24 21:19:45,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:19:45,375 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 537 transitions. [2020-09-24 21:19:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 21:19:45,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:45,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:45,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:19:45,380 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:45,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:45,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1642255734, now seen corresponding path program 1 times [2020-09-24 21:19:45,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:45,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952324556] [2020-09-24 21:19:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:45,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:48,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:48,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 21:19:48,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:48,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3230 [2020-09-24 21:19:48,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:48,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:19:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 21:19:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 21:19:48,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:48,977 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:48,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:48,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:19:49,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:49,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:19:49,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:49,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:19:49,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:49,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:49,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:49,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:49,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:19:49,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:49,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:19:49,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:49,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:19:49,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:49,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:19:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:49,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:49,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 21:19:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:19:49,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 21:19:49,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 21:19:49,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:19:49,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:49,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:19:49,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:19:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:19:49,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:49,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:19:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:49,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:49,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:49,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:49,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 21:19:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:49,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:49,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 21:19:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:49,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:49,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:49,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:49,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:49,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:49,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:49,421 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 21:19:49,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952324556] [2020-09-24 21:19:49,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:49,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:19:49,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353888829] [2020-09-24 21:19:49,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:19:49,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:49,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:19:49,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:19:49,424 INFO L87 Difference]: Start difference. First operand 484 states and 537 transitions. Second operand 8 states. [2020-09-24 21:19:49,995 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:52,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:52,760 INFO L93 Difference]: Finished difference Result 1353 states and 1764 transitions. [2020-09-24 21:19:52,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:19:52,760 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-09-24 21:19:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:52,774 INFO L225 Difference]: With dead ends: 1353 [2020-09-24 21:19:52,774 INFO L226 Difference]: Without dead ends: 1350 [2020-09-24 21:19:52,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2020-09-24 21:19:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2020-09-24 21:19:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 779. [2020-09-24 21:19:52,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-09-24 21:19:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 880 transitions. [2020-09-24 21:19:52,933 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 880 transitions. Word has length 200 [2020-09-24 21:19:52,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:52,934 INFO L479 AbstractCegarLoop]: Abstraction has 779 states and 880 transitions. [2020-09-24 21:19:52,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:19:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 880 transitions. [2020-09-24 21:19:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-24 21:19:52,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:52,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 21:19:52,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:19:52,943 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:52,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:52,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1764175175, now seen corresponding path program 1 times [2020-09-24 21:19:52,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:52,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521840713] [2020-09-24 21:19:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:53,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:54,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking...