/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:01:33,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:01:33,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:01:33,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:01:33,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:01:33,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:01:33,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:01:33,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:01:33,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:01:33,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:01:33,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:01:33,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:01:33,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:01:33,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:01:33,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:01:33,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:01:33,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:01:33,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:01:33,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:01:33,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:01:33,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:01:33,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:01:33,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:01:33,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:01:33,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:01:33,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:01:33,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:01:33,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:01:33,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:01:33,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:01:33,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:01:33,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:01:33,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:01:33,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:01:33,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:01:33,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:01:33,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:01:33,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:01:33,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:01:33,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:01:33,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:01:33,095 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 [2020-09-25 12:01:33,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:01:33,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:01:33,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:01:33,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:01:33,125 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:01:33,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:01:33,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:01:33,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:01:33,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:01:33,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:01:33,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:01:33,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:01:33,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:01:33,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:01:33,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:01:33,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:01:33,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:01:33,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:01:33,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:01:33,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:01:33,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:01:33,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:01:33,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:01:33,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:01:33,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:01:33,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:01:33,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:01:33,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:01:33,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:01:33,130 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:01:33,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:01:33,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:01:33,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:01:33,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:01:33,608 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:01:33,609 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 12:01:33,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12de3d703/39722bc4377b4d079ec8c544ac47918d/FLAGdc9204146 [2020-09-25 12:01:34,286 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:01:34,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 12:01:34,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12de3d703/39722bc4377b4d079ec8c544ac47918d/FLAGdc9204146 [2020-09-25 12:01:34,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12de3d703/39722bc4377b4d079ec8c544ac47918d [2020-09-25 12:01:34,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:01:34,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:01:34,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:01:34,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:01:34,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:01:34,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:01:34" (1/1) ... [2020-09-25 12:01:34,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e89ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:34, skipping insertion in model container [2020-09-25 12:01:34,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:01:34" (1/1) ... [2020-09-25 12:01:34,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:01:34,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:01:35,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:01:35,183 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:01:35,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:01:35,312 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:01:35,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35 WrapperNode [2020-09-25 12:01:35,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:01:35,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:01:35,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:01:35,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:01:35,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (1/1) ... [2020-09-25 12:01:35,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:01:35,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:01:35,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:01:35,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:01:35,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (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 [2020-09-25 12:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 12:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 12:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:01:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:01:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:01:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:01:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:01:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:01:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:01:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:01:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:01:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:01:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:01:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:01:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:01:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:01:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:01:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:01:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:01:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:01:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:01:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:01:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:01:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:01:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:01:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:01:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:01:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:01:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:01:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:01:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:01:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:01:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:01:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:01:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 12:01:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 12:01:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:01:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:01:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:01:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:01:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:01:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:01:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:01:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:01:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:01:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:01:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:01:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:01:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:01:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:01:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:01:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:01:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:01:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:01:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:01:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:01:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:01:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:01:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:01:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:01:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:01:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:01:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:01:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:01:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:01:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:01:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:01:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:01:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:01:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:01:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:01:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:01:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:01:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:01:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:01:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:01:36,701 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:01:36,701 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:01:36,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:01:36 BoogieIcfgContainer [2020-09-25 12:01:36,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:01:36,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:01:36,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:01:36,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:01:36,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:01:34" (1/3) ... [2020-09-25 12:01:36,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5894df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:01:36, skipping insertion in model container [2020-09-25 12:01:36,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:01:35" (2/3) ... [2020-09-25 12:01:36,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5894df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:01:36, skipping insertion in model container [2020-09-25 12:01:36,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:01:36" (3/3) ... [2020-09-25 12:01:36,719 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-25 12:01:36,731 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:01:36,743 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:01:36,765 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:01:36,796 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:01:36,796 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:01:36,797 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:01:36,797 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:01:36,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:01:36,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:01:36,797 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:01:36,797 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:01:36,827 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 12:01:36,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 12:01:36,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:01:36,848 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] [2020-09-25 12:01:36,848 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:01:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:01:36,856 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-25 12:01:36,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:01:36,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10884397] [2020-09-25 12:01:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:01:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:37,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:37,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:38,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:39,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:40,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:42,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:42,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 12:01:42,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:01:42,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 12:01:42,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:42,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:42,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:01:42,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:01:42,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:01:42,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:01:42,770 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:01:42,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:01:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:42,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:01:43,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 12:01:43,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:43,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:43,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:01:43,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:01:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:43,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:01:43,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:01:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:01:43,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:01:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:43,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:01:43,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:01:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:43,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:01:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:01:43,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:01:43,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:01:43,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:43,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:01:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:43,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 12:01:43,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:01:43,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:43,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:01:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:01:43,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:01:43,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:01:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:01:43,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 12:01:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:01:43,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:01:43,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:01:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:43,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 12:01:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:43,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:43,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:01:43,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:43,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:01:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:43,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:01:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:43,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:01:43,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10884397] [2020-09-25 12:01:43,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:01:43,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:01:43,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834484347] [2020-09-25 12:01:43,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:01:43,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:01:43,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:01:43,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:01:43,425 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 5 states. [2020-09-25 12:01:44,117 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:01:45,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:01:45,332 INFO L93 Difference]: Finished difference Result 490 states and 581 transitions. [2020-09-25 12:01:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:01:45,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 12:01:45,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:01:45,356 INFO L225 Difference]: With dead ends: 490 [2020-09-25 12:01:45,357 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 12:01:45,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:01:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 12:01:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 263. [2020-09-25 12:01:45,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 12:01:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 285 transitions. [2020-09-25 12:01:45,517 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 285 transitions. Word has length 148 [2020-09-25 12:01:45,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:01:45,518 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 285 transitions. [2020-09-25 12:01:45,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:01:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 285 transitions. [2020-09-25 12:01:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 12:01:45,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:01:45,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:01:45,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:01:45,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:01:45,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:01:45,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1950916866, now seen corresponding path program 1 times [2020-09-25 12:01:45,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:01:45,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41916014] [2020-09-25 12:01:45,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:01:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:45,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:45,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:46,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:49,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:50,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:50,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:50,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 12:01:50,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:01:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:01:50,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:50,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:01:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 12:01:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:01:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:50,907 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:01:50,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:01:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:50,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:01:51,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 12:01:51,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:01:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:51,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:01:51,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:01:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:51,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:01:51,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:01:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:01:51,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:01:51,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:01:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:51,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:01:51,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:01:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:01:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:01:51,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 12:01:51,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:01:51,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:01:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:01:51,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:01:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:01:51,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:01:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:01:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:01:51,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:01:51,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:01:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:01:51,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:01:51,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:01:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:01:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:01:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:01:51,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:01:51,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:01:51,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 12:01:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:51,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:51,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:01:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:01:51,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:01:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:01:51,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:01:51,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:01:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:01:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:01:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:01:51,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:01:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:01:51,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41916014] [2020-09-25 12:01:51,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:01:51,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:01:51,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632287131] [2020-09-25 12:01:51,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:01:51,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:01:51,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:01:51,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:01:51,243 INFO L87 Difference]: Start difference. First operand 263 states and 285 transitions. Second operand 6 states. [2020-09-25 12:01:51,917 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:01:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:01:54,885 INFO L93 Difference]: Finished difference Result 591 states and 759 transitions. [2020-09-25 12:01:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:01:54,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 12:01:54,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:01:54,896 INFO L225 Difference]: With dead ends: 591 [2020-09-25 12:01:54,896 INFO L226 Difference]: Without dead ends: 588 [2020-09-25 12:01:54,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:01:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-09-25 12:01:54,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 411. [2020-09-25 12:01:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-25 12:01:54,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 461 transitions. [2020-09-25 12:01:54,994 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 461 transitions. Word has length 162 [2020-09-25 12:01:54,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:01:54,995 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 461 transitions. [2020-09-25 12:01:54,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:01:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 461 transitions. [2020-09-25 12:01:55,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 12:01:55,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:01:55,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:01:55,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:01:55,003 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:01:55,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:01:55,003 INFO L82 PathProgramCache]: Analyzing trace with hash -696464108, now seen corresponding path program 1 times [2020-09-25 12:01:55,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:01:55,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22650691] [2020-09-25 12:01:55,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:01:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:01:55,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:55,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:55,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:01:55,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 12:02:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:02:00,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 12:02:00,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:02:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:02:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 12:02:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:00,402 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:02:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:02:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:02:00,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 12:02:00,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:02:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:00,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:02:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:00,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:00,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:02:00,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:02:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:00,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:00,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:00,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:00,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:02:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:00,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:02:00,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:00,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:00,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:02:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:00,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:00,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:00,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:02:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:00,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:00,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:02:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:00,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:00,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:02:00,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:00,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:02:00,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 12:02:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:00,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:00,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:01,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:01,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 12:02:01,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:02:01,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-25 12:02:01,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:01,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:02:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 12:02:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 12:02:01,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:01,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:01,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:01,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:02:01,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:02:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:02:01,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:01,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:02:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:02:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:02:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:01,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:01,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:01,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:01,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:02:01,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:02:01,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:01,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:02:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:02:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:02:01,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:01,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:01,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:01,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:01,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:01,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:01,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:01,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-25 12:02:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:01,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 12:02:02,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 12:02:02,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:02:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 12:02:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:02:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:02,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 12:02:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:02,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:02:02,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:02:02,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:02,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:02:02,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 12:02:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:02:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:02:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:02:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:02:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:02:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:02:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:02:02,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:02:02,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:02:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:02:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:02:02,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:02,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:02,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 12:02:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:02,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:02,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:02:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 12:02:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:02,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:02,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:02,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:02,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:02,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:02,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:02:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:02,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:02,400 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 12:02:02,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22650691] [2020-09-25 12:02:02,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:02:02,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 12:02:02,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110434651] [2020-09-25 12:02:02,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 12:02:02,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:02:02,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 12:02:02,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:02:02,409 INFO L87 Difference]: Start difference. First operand 411 states and 461 transitions. Second operand 16 states. [2020-09-25 12:02:03,051 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:02:04,376 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:02:05,718 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 12:02:06,522 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:02:07,182 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-25 12:02:07,577 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:02:08,298 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-25 12:02:08,714 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:02:09,282 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 12:02:09,941 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-25 12:02:10,672 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 196 [2020-09-25 12:02:11,375 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-09-25 12:02:12,018 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 193 [2020-09-25 12:02:12,675 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 200 [2020-09-25 12:02:13,639 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:14,256 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 12:02:14,615 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:02:15,227 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-25 12:02:15,670 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:02:16,309 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-25 12:02:16,997 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 195 [2020-09-25 12:02:17,715 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 202 [2020-09-25 12:02:18,362 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-25 12:02:19,038 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-09-25 12:02:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:02:24,350 INFO L93 Difference]: Finished difference Result 1599 states and 2149 transitions. [2020-09-25 12:02:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-09-25 12:02:24,351 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 225 [2020-09-25 12:02:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:02:24,364 INFO L225 Difference]: With dead ends: 1599 [2020-09-25 12:02:24,365 INFO L226 Difference]: Without dead ends: 1303 [2020-09-25 12:02:24,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2072 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1139, Invalid=5181, Unknown=0, NotChecked=0, Total=6320 [2020-09-25 12:02:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2020-09-25 12:02:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 894. [2020-09-25 12:02:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-09-25 12:02:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1013 transitions. [2020-09-25 12:02:24,582 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1013 transitions. Word has length 225 [2020-09-25 12:02:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:02:24,582 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1013 transitions. [2020-09-25 12:02:24,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 12:02:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1013 transitions. [2020-09-25 12:02:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-09-25 12:02:24,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:02:24,592 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-09-25 12:02:24,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:02:24,593 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:02:24,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:02:24,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1758883534, now seen corresponding path program 1 times [2020-09-25 12:02:24,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:02:24,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666472285] [2020-09-25 12:02:24,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:02:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:24,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:24,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:25,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking...