/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:23:52,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:23:52,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:23:52,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:23:52,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:23:52,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:23:52,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:23:52,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:23:52,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:23:52,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:23:52,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:23:52,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:23:52,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:23:52,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:23:52,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:23:52,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:23:52,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:23:52,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:23:52,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:23:52,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:23:52,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:23:52,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:23:52,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:23:52,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:23:52,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:23:52,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:23:52,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:23:52,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:23:52,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:23:52,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:23:52,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:23:52,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:23:52,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:23:52,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:23:52,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:23:52,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:23:52,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:23:52,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:23:52,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:23:52,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:23:52,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:23:52,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:23:52,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:23:52,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:23:52,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:23:52,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:23:52,679 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:23:52,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:23:52,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:23:52,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:23:52,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:23:52,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:23:52,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:23:52,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:23:52,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:23:52,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:23:52,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:23:52,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:23:52,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:23:52,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:23:52,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:23:52,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:23:52,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:23:52,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:52,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:23:52,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:23:52,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:23:52,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:23:52,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:23:52,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:23:52,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:23:52,686 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:23:53,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:23:53,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:23:53,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:23:53,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:23:53,146 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:23:53,147 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-24 22:23:53,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adaacd262/6394346505104e958de0e67a74ef1ca9/FLAG8252f365a [2020-09-24 22:23:53,883 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:23:53,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-24 22:23:53,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adaacd262/6394346505104e958de0e67a74ef1ca9/FLAG8252f365a [2020-09-24 22:23:54,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adaacd262/6394346505104e958de0e67a74ef1ca9 [2020-09-24 22:23:54,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:23:54,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:23:54,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:54,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:23:54,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:23:54,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54, skipping insertion in model container [2020-09-24 22:23:54,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:23:54,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:23:54,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:54,710 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:23:54,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:54,885 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:23:54,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54 WrapperNode [2020-09-24 22:23:54,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:54,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:23:54,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:23:54,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:23:54,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... [2020-09-24 22:23:54,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:23:54,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:23:54,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:23:54,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:23:54,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:23:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:23:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:23:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:23:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:23:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:23:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:23:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:23:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:23:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:23:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:23:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:23:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:23:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:23:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:23:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:23:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:23:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:23:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:23:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:23:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:23:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:23:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:23:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:23:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:23:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:23:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:23:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:23:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:23:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:23:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:23:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:23:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:23:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:23:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:23:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:23:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:23:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:23:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:23:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:23:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:23:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:23:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:23:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:23:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:23:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:23:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:23:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:23:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:23:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:23:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:23:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:23:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:23:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:23:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:23:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:23:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:23:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:23:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:23:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:23:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:23:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:23:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:23:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:23:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:23:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:23:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 22:23:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:23:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:23:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:23:56,312 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:23:56,313 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:23:56,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:56 BoogieIcfgContainer [2020-09-24 22:23:56,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:23:56,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:23:56,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:23:56,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:23:56,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:23:54" (1/3) ... [2020-09-24 22:23:56,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac2f8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:56, skipping insertion in model container [2020-09-24 22:23:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:54" (2/3) ... [2020-09-24 22:23:56,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac2f8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:56, skipping insertion in model container [2020-09-24 22:23:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:56" (3/3) ... [2020-09-24 22:23:56,331 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-09-24 22:23:56,343 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:23:56,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:23:56,380 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:23:56,418 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:23:56,418 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:23:56,418 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:23:56,419 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:23:56,419 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:23:56,419 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:23:56,419 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:23:56,419 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:23:56,451 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 22:23:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:23:56,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:56,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:56,475 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:56,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2110022022, now seen corresponding path program 1 times [2020-09-24 22:23:56,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:56,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124694624] [2020-09-24 22:23:56,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:57,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:57,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:57,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:01,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:01,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:24:01,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:24:01,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 22:24:01,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:01,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:01,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:24:01,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:24:01,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:24:02,527 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:02,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 22:24:02,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:02,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:02,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:02,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:02,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:02,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:24:02,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:02,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:02,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:02,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:02,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:02,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:02,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:02,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:02,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:24:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:02,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:02,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:02,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:02,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:24:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:02,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:02,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:24:02,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:02,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:02,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:02,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:02,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124694624] [2020-09-24 22:24:02,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:02,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:24:02,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90295708] [2020-09-24 22:24:02,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:24:02,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:02,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:24:02,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:24:02,954 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 8 states. [2020-09-24 22:24:03,674 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:04,832 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:05,147 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:05,492 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:05,842 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:06,154 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:07,218 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:07,534 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:07,931 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:08,911 INFO L93 Difference]: Finished difference Result 606 states and 756 transitions. [2020-09-24 22:24:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:24:08,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:24:08,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:08,957 INFO L225 Difference]: With dead ends: 606 [2020-09-24 22:24:08,958 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 22:24:08,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:24:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 22:24:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 365. [2020-09-24 22:24:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 22:24:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 419 transitions. [2020-09-24 22:24:09,112 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 419 transitions. Word has length 142 [2020-09-24 22:24:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:09,113 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 419 transitions. [2020-09-24 22:24:09,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:24:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 419 transitions. [2020-09-24 22:24:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 22:24:09,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:09,120 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:09,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:24:09,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:09,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1126858538, now seen corresponding path program 1 times [2020-09-24 22:24:09,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:09,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455121058] [2020-09-24 22:24:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:09,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:10,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:12,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 22:24:14,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 22:24:14,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 22:24:14,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:24:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-09-24 22:24:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 22:24:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:14,648 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:14,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:14,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 22:24:14,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:14,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:14,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:14,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:14,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:14,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:14,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:14,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:14,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:14,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:14,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:14,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:14,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:24:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:24:14,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:14,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:14,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:24:14,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:14,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:14,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:14,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:14,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:14,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:14,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:14,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:14,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:14,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:24:14,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:24:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:14,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:15,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:24:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-24 22:24:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:24:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:15,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:15,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:15,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:15,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:24:15,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 22:24:15,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:15,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:24:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:15,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:15,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:15,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:15,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:15,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:15,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:24:15,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:24:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:15,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:15,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:15,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:24:15,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:24:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:15,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:16,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:16,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:16,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:16,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:24:16,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:16,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:24:16,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:24:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:16,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:24:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:16,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:16,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:24:16,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:16,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:24:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:16,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:16,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:16,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:16,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:16,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:16,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:16,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:16,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:16,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:16,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:24:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:16,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:16,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:16,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:16,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:16,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:16,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:16,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:16,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:16,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:16,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 22:24:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:16,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:16,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:16,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:16,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:16,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:16,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:16,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 22:24:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:16,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:16,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:16,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:16,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:16,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:16,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:16,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 22:24:16,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455121058] [2020-09-24 22:24:16,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:24:16,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 22:24:16,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910697637] [2020-09-24 22:24:16,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 22:24:16,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:16,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 22:24:16,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:24:16,218 INFO L87 Difference]: Start difference. First operand 365 states and 419 transitions. Second operand 14 states. [2020-09-24 22:24:16,746 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:17,700 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:18,317 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 22:24:18,738 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:19,093 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:19,435 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:19,798 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:20,161 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:20,533 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:20,947 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:21,254 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:21,569 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:21,910 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:22,386 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:22,708 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:23,056 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:23,454 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:23,851 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:24,216 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:26,721 INFO L93 Difference]: Finished difference Result 1052 states and 1416 transitions. [2020-09-24 22:24:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 22:24:26,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 227 [2020-09-24 22:24:26,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:26,731 INFO L225 Difference]: With dead ends: 1052 [2020-09-24 22:24:26,732 INFO L226 Difference]: Without dead ends: 750 [2020-09-24 22:24:26,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 22:24:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-09-24 22:24:26,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 585. [2020-09-24 22:24:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-24 22:24:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 677 transitions. [2020-09-24 22:24:26,831 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 677 transitions. Word has length 227 [2020-09-24 22:24:26,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:26,832 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 677 transitions. [2020-09-24 22:24:26,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 22:24:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 677 transitions. [2020-09-24 22:24:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 22:24:26,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:26,837 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:26,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:24:26,838 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:26,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:26,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1210851237, now seen corresponding path program 1 times [2020-09-24 22:24:26,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:26,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962443720] [2020-09-24 22:24:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:27,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:31,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:31,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:31,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 22:24:31,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:24:31,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5091 [2020-09-24 22:24:31,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:24:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-24 22:24:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 22:24:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:32,406 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:32,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:32,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:32,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 22:24:32,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:32,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:32,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:32,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:32,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:32,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:32,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:32,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:32,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:32,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:32,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:32,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:32,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:32,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:32,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:32,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:32,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:32,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:32,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:32,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:32,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:32,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:24:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:32,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:24:32,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:32,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:32,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:24:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:32,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:32,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:24:33,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-09-24 22:24:33,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:24:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:33,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:24:33,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 22:24:33,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:24:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:33,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:33,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 22:24:33,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:24:33,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:33,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:33,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:33,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:24:33,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:24:33,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:33,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:24:33,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:24:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:24:33,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:33,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:24:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:33,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:33,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:24:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:33,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:33,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 22:24:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:33,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 22:24:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:33,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:33,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:33,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:33,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:33,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:33,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:33,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 22:24:33,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962443720] [2020-09-24 22:24:33,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:33,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 22:24:33,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249751057] [2020-09-24 22:24:33,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 22:24:33,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:33,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 22:24:33,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:24:33,822 INFO L87 Difference]: Start difference. First operand 585 states and 677 transitions. Second operand 15 states. [2020-09-24 22:24:34,321 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:35,510 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:35,856 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:36,248 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:36,563 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:36,923 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:24:37,252 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:37,594 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:38,122 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:38,627 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:38,973 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:39,342 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:24:39,736 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:40,075 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:40,423 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:40,786 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:41,108 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:41,427 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:41,775 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:42,164 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:42,489 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:44,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:44,721 INFO L93 Difference]: Finished difference Result 1255 states and 1594 transitions. [2020-09-24 22:24:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-24 22:24:44,724 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 217 [2020-09-24 22:24:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:44,731 INFO L225 Difference]: With dead ends: 1255 [2020-09-24 22:24:44,731 INFO L226 Difference]: Without dead ends: 780 [2020-09-24 22:24:44,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=296, Invalid=1264, Unknown=0, NotChecked=0, Total=1560 [2020-09-24 22:24:44,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-24 22:24:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 601. [2020-09-24 22:24:44,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-24 22:24:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 693 transitions. [2020-09-24 22:24:44,848 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 693 transitions. Word has length 217 [2020-09-24 22:24:44,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:44,850 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 693 transitions. [2020-09-24 22:24:44,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 22:24:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 693 transitions. [2020-09-24 22:24:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 22:24:44,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:44,856 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:44,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:24:44,857 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:44,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:44,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1581498018, now seen corresponding path program 1 times [2020-09-24 22:24:44,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:44,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403861861] [2020-09-24 22:24:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat