/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:19:29,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:19:29,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:19:29,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:19:29,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:19:29,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:19:29,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:19:29,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:19:29,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:19:29,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:19:29,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:19:29,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:19:29,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:19:29,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:19:29,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:19:29,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:19:29,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:19:29,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:19:29,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:19:29,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:19:29,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:19:29,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:19:29,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:19:29,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:19:29,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:19:29,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:19:29,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:19:29,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:19:29,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:19:29,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:19:29,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:19:29,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:19:29,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:19:29,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:19:29,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:19:29,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:19:29,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:19:29,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:19:29,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:19:29,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:19:29,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:19:29,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:19:29,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:19:29,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:19:29,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:19:29,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:19:29,192 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:19:29,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:19:29,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:19:29,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:19:29,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:19:29,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:19:29,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:19:29,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:19:29,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:19:29,196 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:19:29,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:19:29,196 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:19:29,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:19:29,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:19:29,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:19:29,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:19:29,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:19:29,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:29,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:19:29,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:19:29,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:19:29,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:19:29,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:19:29,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:19:29,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:19:29,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:19:29,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:19:29,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:19:29,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:19:29,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:19:29,662 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:19:29,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-09-24 21:19:29,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c6c6537f/36d1be1b53fa4d4ab9574220c199b883/FLAG9524282a1 [2020-09-24 21:19:30,344 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:19:30,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-09-24 21:19:30,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c6c6537f/36d1be1b53fa4d4ab9574220c199b883/FLAG9524282a1 [2020-09-24 21:19:30,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c6c6537f/36d1be1b53fa4d4ab9574220c199b883 [2020-09-24 21:19:30,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:19:30,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:19:30,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:30,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:19:30,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:19:30,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:30" (1/1) ... [2020-09-24 21:19:30,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1190dd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:30, skipping insertion in model container [2020-09-24 21:19:30,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:30" (1/1) ... [2020-09-24 21:19:30,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:19:30,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:19:31,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:31,217 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:19:31,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:31,361 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:19:31,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31 WrapperNode [2020-09-24 21:19:31,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:31,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:19:31,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:19:31,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:19:31,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... [2020-09-24 21:19:31,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:19:31,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:19:31,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:19:31,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:19:31,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:19:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:19:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:19:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:19:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:19:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:19:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:19:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:19:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:19:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:19:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:19:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:19:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:19:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:19:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:19:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:19:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:19:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:19:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:19:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:19:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:19:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:19:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:19:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:19:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:19:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:19:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:19:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:19:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:19:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:19:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:19:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:19:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:19:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:19:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:19:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:19:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:19:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:19:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:19:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:19:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:19:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:19:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:19:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:19:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:19:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:19:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:19:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:19:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:19:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:19:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:19:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:19:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:19:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:19:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:19:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:19:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:19:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:19:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:19:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:19:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:19:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:19:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:19:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:19:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:19:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:19:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:19:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:19:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:19:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:19:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:19:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:19:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:19:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:19:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:19:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:19:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:19:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:19:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:19:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:19:32,632 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:19:32,633 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:19:32,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:32 BoogieIcfgContainer [2020-09-24 21:19:32,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:19:32,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:19:32,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:19:32,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:19:32,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:19:30" (1/3) ... [2020-09-24 21:19:32,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492ec9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:32, skipping insertion in model container [2020-09-24 21:19:32,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:31" (2/3) ... [2020-09-24 21:19:32,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492ec9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:32, skipping insertion in model container [2020-09-24 21:19:32,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:32" (3/3) ... [2020-09-24 21:19:32,649 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-09-24 21:19:32,660 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:19:32,671 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:19:32,693 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:19:32,726 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:19:32,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:19:32,727 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:19:32,727 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:19:32,727 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:19:32,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:19:32,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:19:32,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:19:32,757 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-24 21:19:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:19:32,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:32,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:32,776 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:32,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1518186743, now seen corresponding path program 1 times [2020-09-24 21:19:32,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:32,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821580666] [2020-09-24 21:19:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:33,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:38,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:38,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:19:38,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:19:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-09-24 21:19:38,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:19:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 21:19:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:19:38,710 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:38,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:39,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-24 21:19:39,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:19:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:39,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:39,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:39,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:39,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:19:39,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:39,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:39,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:39,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:39,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:39,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:19:39,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:19:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:39,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:39,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:39,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:39,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:39,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:39,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821580666] [2020-09-24 21:19:39,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:39,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:19:39,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216925451] [2020-09-24 21:19:39,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:19:39,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:39,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:19:39,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:19:39,371 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-09-24 21:19:40,044 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:41,352 INFO L93 Difference]: Finished difference Result 468 states and 552 transitions. [2020-09-24 21:19:41,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:19:41,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:19:41,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:41,387 INFO L225 Difference]: With dead ends: 468 [2020-09-24 21:19:41,388 INFO L226 Difference]: Without dead ends: 300 [2020-09-24 21:19:41,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:19:41,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-24 21:19:41,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 253. [2020-09-24 21:19:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-24 21:19:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-24 21:19:41,535 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 148 [2020-09-24 21:19:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:41,537 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-24 21:19:41,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:19:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-24 21:19:41,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:19:41,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:41,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:41,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:19:41,543 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:41,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:41,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1239391004, now seen corresponding path program 1 times [2020-09-24 21:19:41,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:41,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732982129] [2020-09-24 21:19:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:41,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:41,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:45,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:19:46,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:19:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:19:46,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:19:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:19:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:19:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,954 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:46,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:47,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 21:19:47,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:19:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:47,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:47,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:47,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:47,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:47,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:47,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:47,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:19:47,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:47,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:47,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:47,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:47,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:47,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:47,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:19:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:19:47,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:47,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:19:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:19:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:19:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:47,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:47,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:47,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:19:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:47,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:47,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:47,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:19:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:47,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:47,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:47,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:47,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:47,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:47,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:47,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:47,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:47,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732982129] [2020-09-24 21:19:47,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:47,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:19:47,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060526326] [2020-09-24 21:19:47,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:19:47,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:47,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:19:47,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:19:47,506 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 7 states. [2020-09-24 21:19:48,049 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:49,603 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:50,720 INFO L93 Difference]: Finished difference Result 591 states and 699 transitions. [2020-09-24 21:19:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:19:50,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-09-24 21:19:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:50,726 INFO L225 Difference]: With dead ends: 591 [2020-09-24 21:19:50,727 INFO L226 Difference]: Without dead ends: 453 [2020-09-24 21:19:50,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:19:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-09-24 21:19:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 375. [2020-09-24 21:19:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 21:19:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 417 transitions. [2020-09-24 21:19:50,843 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 417 transitions. Word has length 157 [2020-09-24 21:19:50,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:50,845 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 417 transitions. [2020-09-24 21:19:50,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:19:50,845 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 417 transitions. [2020-09-24 21:19:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 21:19:50,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:50,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:50,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:19:50,855 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:50,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1590869172, now seen corresponding path program 1 times [2020-09-24 21:19:50,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:50,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223300045] [2020-09-24 21:19:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:51,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:51,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:52,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:53,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:54,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 21:19:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:19:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 21:19:55,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 21:19:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:19:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 21:19:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,342 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:56,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:56,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-24 21:19:56,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:19:56,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:56,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:56,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:56,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:19:56,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:56,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:56,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:19:56,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:56,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:56,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:56,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:19:56,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:56,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:56,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:19:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:19:56,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:19:56,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:19:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:19:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:19:56,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:19:56,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:19:56,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:19:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:19:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:19:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:57,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:19:57,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:57,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 21:19:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:57,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:57,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:57,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:57,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 21:19:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:57,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:19:57,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:57,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:57,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223300045] [2020-09-24 21:19:57,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:57,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:19:57,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592627718] [2020-09-24 21:19:57,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:19:57,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:57,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:19:57,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:19:57,129 INFO L87 Difference]: Start difference. First operand 375 states and 417 transitions. Second operand 11 states. [2020-09-24 21:19:57,613 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:59,277 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:59,576 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:59,954 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:00,756 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:01,109 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:01,515 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:01,877 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:20:02,233 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:20:02,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:02,706 INFO L93 Difference]: Finished difference Result 711 states and 836 transitions. [2020-09-24 21:20:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 21:20:02,707 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 181 [2020-09-24 21:20:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:02,712 INFO L225 Difference]: With dead ends: 711 [2020-09-24 21:20:02,712 INFO L226 Difference]: Without dead ends: 451 [2020-09-24 21:20:02,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:20:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-24 21:20:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 373. [2020-09-24 21:20:02,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-24 21:20:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 413 transitions. [2020-09-24 21:20:02,798 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 413 transitions. Word has length 181 [2020-09-24 21:20:02,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:02,801 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 413 transitions. [2020-09-24 21:20:02,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:20:02,802 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 413 transitions. [2020-09-24 21:20:02,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 21:20:02,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:02,805 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] [2020-09-24 21:20:02,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:20:02,806 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:02,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:02,807 INFO L82 PathProgramCache]: Analyzing trace with hash 605287094, now seen corresponding path program 1 times [2020-09-24 21:20:02,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:02,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978566059] [2020-09-24 21:20:02,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:02,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 21:20:07,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:20:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 21:20:07,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:20:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:20:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 21:20:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:08,279 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:08,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:08,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:08,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:08,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 21:20:08,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:08,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:08,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:20:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:08,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:08,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:08,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:08,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:08,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:08,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:08,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:08,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:08,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:08,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:08,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:08,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:08,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:08,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:08,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:08,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:08,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:08,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:08,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:08,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:08,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:08,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:08,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:08,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:08,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:08,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:08,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:08,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:20:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:08,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:08,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:20:09,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:20:09,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-09-24 21:20:09,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:20:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:20:09,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:09,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:09,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:20:09,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:09,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:09,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:09,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:09,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:09,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:09,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:20:09,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 21:20:09,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:20:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:20:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:09,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:20:09,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:20:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:20:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:20:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:09,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:20:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:20:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:09,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:09,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:09,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:09,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:20:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:09,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:09,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:09,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:09,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:09,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:09,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 21:20:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:09,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:09,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:09,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:09,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:20:10,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978566059] [2020-09-24 21:20:10,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:20:10,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 21:20:10,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715244256] [2020-09-24 21:20:10,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 21:20:10,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:10,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 21:20:10,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:20:10,037 INFO L87 Difference]: Start difference. First operand 373 states and 413 transitions. Second operand 16 states. [2020-09-24 21:20:10,635 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:12,394 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:12,716 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:13,100 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:13,424 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:13,735 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:14,057 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:14,521 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:14,841 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:15,217 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:15,566 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:15,876 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:16,182 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:16,526 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:20:16,851 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:20:17,167 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:20:17,518 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:17,845 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:18,187 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:19,071 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190