/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:04:28,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:04:28,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:04:28,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:04:28,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:04:28,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:04:28,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:04:28,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:04:28,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:04:28,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:04:29,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:04:29,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:04:29,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:04:29,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:04:29,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:04:29,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:04:29,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:04:29,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:04:29,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:04:29,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:04:29,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:04:29,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:04:29,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:04:29,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:04:29,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:04:29,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:04:29,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:04:29,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:04:29,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:04:29,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:04:29,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:04:29,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:04:29,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:04:29,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:04:29,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:04:29,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:04:29,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:04:29,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:04:29,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:04:29,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:04:29,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:04:29,058 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 [2020-09-21 11:04:29,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:04:29,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:04:29,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:04:29,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:04:29,092 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:04:29,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:04:29,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:04:29,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:04:29,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:04:29,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:04:29,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:04:29,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:04:29,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:04:29,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:04:29,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:04:29,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:04:29,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:04:29,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:04:29,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:04:29,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:04:29,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:04:29,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:04:29,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:04:29,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:04:29,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:04:29,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:04:29,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:04:29,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:04:29,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:04:29,097 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:04:29,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:04:29,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:04:29,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:04:29,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:04:29,558 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:04:29,559 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-21 11:04:29,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/791ead48e/f84393fb4e3340cb8ccf327da287b337/FLAGb533102d3 [2020-09-21 11:04:30,251 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:04:30,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-21 11:04:30,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/791ead48e/f84393fb4e3340cb8ccf327da287b337/FLAGb533102d3 [2020-09-21 11:04:30,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/791ead48e/f84393fb4e3340cb8ccf327da287b337 [2020-09-21 11:04:30,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:04:30,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:04:30,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:04:30,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:04:30,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:04:30,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:04:30" (1/1) ... [2020-09-21 11:04:30,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288b8053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:30, skipping insertion in model container [2020-09-21 11:04:30,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:04:30" (1/1) ... [2020-09-21 11:04:30,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:04:30,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:04:31,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:04:31,045 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:04:31,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:04:31,168 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:04:31,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31 WrapperNode [2020-09-21 11:04:31,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:04:31,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:04:31,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:04:31,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:04:31,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (1/1) ... [2020-09-21 11:04:31,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:04:31,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:04:31,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:04:31,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:04:31,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (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 [2020-09-21 11:04:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:04:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:04:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:04:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:04:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:04:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:04:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:04:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:04:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:04:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:04:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:04:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:04:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:04:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:04:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:04:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:04:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:04:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:04:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:04:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:04:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:04:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:04:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:04:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:04:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:04:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:04:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:04:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:04:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:04:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:04:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:04:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:04:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:04:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:04:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:04:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:04:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:04:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:04:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:04:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:04:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:04:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:04:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:04:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:04:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:04:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:04:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:04:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:04:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:04:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:04:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:04:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:04:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:04:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:04:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:04:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:04:32,467 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:04:32,467 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:04:32,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:04:32 BoogieIcfgContainer [2020-09-21 11:04:32,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:04:32,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:04:32,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:04:32,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:04:32,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:04:30" (1/3) ... [2020-09-21 11:04:32,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622fb4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:04:32, skipping insertion in model container [2020-09-21 11:04:32,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:31" (2/3) ... [2020-09-21 11:04:32,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622fb4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:04:32, skipping insertion in model container [2020-09-21 11:04:32,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:04:32" (3/3) ... [2020-09-21 11:04:32,482 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-21 11:04:32,493 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:04:32,503 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:04:32,525 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:04:32,556 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:04:32,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:04:32,557 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:04:32,557 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:04:32,557 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:04:32,557 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:04:32,557 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:04:32,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:04:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-09-21 11:04:32,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:04:32,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:32,597 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] [2020-09-21 11:04:32,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash -749162492, now seen corresponding path program 1 times [2020-09-21 11:04:32,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:32,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876815767] [2020-09-21 11:04:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:32,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:32,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:32,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:32,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:32,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:04:32,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:04:32,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:04:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,337 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:33,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:33,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:33,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:04:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:04:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:33,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876815767] [2020-09-21 11:04:33,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:33,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:04:33,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317315754] [2020-09-21 11:04:33,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:04:33,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:33,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:04:33,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:04:33,503 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-09-21 11:04:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:34,657 INFO L93 Difference]: Finished difference Result 287 states and 378 transitions. [2020-09-21 11:04:34,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:04:34,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:04:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:34,677 INFO L225 Difference]: With dead ends: 287 [2020-09-21 11:04:34,678 INFO L226 Difference]: Without dead ends: 155 [2020-09-21 11:04:34,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:04:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-21 11:04:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2020-09-21 11:04:34,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-21 11:04:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2020-09-21 11:04:34,781 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2020-09-21 11:04:34,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:34,781 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2020-09-21 11:04:34,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:04:34,782 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2020-09-21 11:04:34,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:04:34,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:34,785 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] [2020-09-21 11:04:34,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:04:34,788 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:34,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:34,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1435333190, now seen corresponding path program 1 times [2020-09-21 11:04:34,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:34,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519305545] [2020-09-21 11:04:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:34,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:34,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:34,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:34,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:34,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:04:34,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:34,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:04:34,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:34,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:34,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:04:34,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:04:34,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,296 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:35,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:35,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:35,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:35,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:04:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:35,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519305545] [2020-09-21 11:04:35,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:35,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:04:35,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974162238] [2020-09-21 11:04:35,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:04:35,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:35,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:04:35,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:04:35,384 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 4 states. [2020-09-21 11:04:35,759 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:36,563 INFO L93 Difference]: Finished difference Result 220 states and 269 transitions. [2020-09-21 11:04:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:04:36,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:04:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:36,568 INFO L225 Difference]: With dead ends: 220 [2020-09-21 11:04:36,568 INFO L226 Difference]: Without dead ends: 139 [2020-09-21 11:04:36,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:04:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-21 11:04:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2020-09-21 11:04:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 11:04:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-21 11:04:36,612 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2020-09-21 11:04:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:36,612 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-21 11:04:36,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:04:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-21 11:04:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:04:36,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:36,617 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] [2020-09-21 11:04:36,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:04:36,617 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:36,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:36,618 INFO L82 PathProgramCache]: Analyzing trace with hash 325618258, now seen corresponding path program 1 times [2020-09-21 11:04:36,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:36,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334182505] [2020-09-21 11:04:36,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:36,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:04:36,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:36,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:36,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:36,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:04:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 11:04:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:04:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,155 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:37,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:04:37,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:37,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:37,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:37,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:37,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:37,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:37,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:37,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:37,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:37,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:04:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:37,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:37,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:04:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:37,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:37,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:37,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:37,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:37,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:37,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:37,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:37,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334182505] [2020-09-21 11:04:37,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:37,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:04:37,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473420670] [2020-09-21 11:04:37,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:04:37,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:37,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:04:37,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:04:37,291 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-09-21 11:04:37,612 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:38,469 INFO L93 Difference]: Finished difference Result 229 states and 283 transitions. [2020-09-21 11:04:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:04:38,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:04:38,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:38,474 INFO L225 Difference]: With dead ends: 229 [2020-09-21 11:04:38,474 INFO L226 Difference]: Without dead ends: 139 [2020-09-21 11:04:38,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:04:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-21 11:04:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2020-09-21 11:04:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 11:04:38,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-09-21 11:04:38,512 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 51 [2020-09-21 11:04:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:38,512 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-09-21 11:04:38,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:04:38,512 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-09-21 11:04:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:04:38,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:38,515 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] [2020-09-21 11:04:38,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:04:38,515 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:38,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:38,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1759847866, now seen corresponding path program 1 times [2020-09-21 11:04:38,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:38,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643824923] [2020-09-21 11:04:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:38,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:38,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:38,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:38,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:38,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 11:04:38,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:38,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-21 11:04:38,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:04:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-21 11:04:38,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,212 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:39,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:39,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:04:39,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:39,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:39,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:39,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:39,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:39,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:39,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:39,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:39,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:39,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:04:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:04:39,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:39,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:04:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:04:39,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:39,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:04:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:04:39,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:04:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:39,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:39,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:39,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:04:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:39,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:39,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:39,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:39,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:39,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:39,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:39,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:39,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:39,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:39,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643824923] [2020-09-21 11:04:39,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:39,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:04:39,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727916505] [2020-09-21 11:04:39,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:04:39,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:39,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:04:39,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:04:39,417 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 7 states. [2020-09-21 11:04:39,783 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:41,015 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:04:41,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:41,721 INFO L93 Difference]: Finished difference Result 321 states and 399 transitions. [2020-09-21 11:04:41,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:04:41,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-21 11:04:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:41,727 INFO L225 Difference]: With dead ends: 321 [2020-09-21 11:04:41,727 INFO L226 Difference]: Without dead ends: 231 [2020-09-21 11:04:41,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:04:41,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-09-21 11:04:41,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 190. [2020-09-21 11:04:41,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-21 11:04:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2020-09-21 11:04:41,815 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 64 [2020-09-21 11:04:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:41,816 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2020-09-21 11:04:41,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:04:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2020-09-21 11:04:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:04:41,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:41,825 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] [2020-09-21 11:04:41,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:04:41,825 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:41,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1017680522, now seen corresponding path program 1 times [2020-09-21 11:04:41,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:41,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520630558] [2020-09-21 11:04:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:04:42,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-21 11:04:42,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:04:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:04:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:42,480 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:42,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:42,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:04:42,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:42,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:42,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:42,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:42,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:42,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:42,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:42,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:42,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:04:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:04:42,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:04:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:04:42,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:42,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:42,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:42,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:04:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:42,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:42,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:04:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:42,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:42,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:42,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:42,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:42,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:42,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:42,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:42,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:42,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520630558] [2020-09-21 11:04:42,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:42,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:04:42,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290666909] [2020-09-21 11:04:42,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:04:42,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:42,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:04:42,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:04:42,668 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand 8 states. [2020-09-21 11:04:43,111 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:44,332 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:44,659 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:44,963 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:45,275 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:45,643 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:46,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:46,732 INFO L93 Difference]: Finished difference Result 565 states and 701 transitions. [2020-09-21 11:04:46,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:04:46,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:04:46,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:46,737 INFO L225 Difference]: With dead ends: 565 [2020-09-21 11:04:46,737 INFO L226 Difference]: Without dead ends: 399 [2020-09-21 11:04:46,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:04:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-21 11:04:46,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 335. [2020-09-21 11:04:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-21 11:04:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 384 transitions. [2020-09-21 11:04:46,822 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 384 transitions. Word has length 78 [2020-09-21 11:04:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:46,823 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 384 transitions. [2020-09-21 11:04:46,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:04:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 384 transitions. [2020-09-21 11:04:46,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:04:46,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:46,825 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] [2020-09-21 11:04:46,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:04:46,826 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:46,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:46,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1476513266, now seen corresponding path program 1 times [2020-09-21 11:04:46,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:46,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121464891] [2020-09-21 11:04:46,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:04:47,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-09-21 11:04:47,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:04:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 11:04:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:47,756 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:47,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:47,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:04:47,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:47,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:47,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:47,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:47,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-21 11:04:47,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:47,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:47,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:47,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:47,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:47,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:04:47,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:04:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,973 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:04:47,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:04:47,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:47,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:04:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:47,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:47,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:47,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:47,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:47,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:48,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:48,000 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:48,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:48,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:48,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:48,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:48,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:48,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:04:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:48,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:48,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:48,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:48,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:48,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:48,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:48,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:48,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:48,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:48,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:04:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:48,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:48,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:48,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:48,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:48,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:48,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:48,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:48,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:48,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121464891] [2020-09-21 11:04:48,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:48,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:04:48,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745713386] [2020-09-21 11:04:48,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:04:48,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:48,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:04:48,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:04:48,072 INFO L87 Difference]: Start difference. First operand 335 states and 384 transitions. Second operand 9 states. [2020-09-21 11:04:48,519 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:49,671 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:04:49,953 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:50,266 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:50,579 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:50,877 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:51,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:51,768 INFO L93 Difference]: Finished difference Result 438 states and 552 transitions. [2020-09-21 11:04:51,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:04:51,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-21 11:04:51,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:51,775 INFO L225 Difference]: With dead ends: 438 [2020-09-21 11:04:51,775 INFO L226 Difference]: Without dead ends: 435 [2020-09-21 11:04:51,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:04:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-21 11:04:51,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 335. [2020-09-21 11:04:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-21 11:04:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 383 transitions. [2020-09-21 11:04:51,849 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 383 transitions. Word has length 82 [2020-09-21 11:04:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:51,850 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 383 transitions. [2020-09-21 11:04:51,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:04:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 383 transitions. [2020-09-21 11:04:51,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:04:51,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:51,851 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] [2020-09-21 11:04:51,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:04:51,852 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:51,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:51,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1573868364, now seen corresponding path program 1 times [2020-09-21 11:04:51,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:51,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446886584] [2020-09-21 11:04:51,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:04:51,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:04:51,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:04:51,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-21 11:04:51,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:51,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,148 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:52,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:52,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:52,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:52,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:52,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:52,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:52,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:52,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:52,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:52,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:52,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:04:52,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:04:52,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:04:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:04:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:52,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:04:52,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:52,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:04:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:04:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:52,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,318 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:52,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:52,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:04:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:52,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:52,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,350 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:52,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:52,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:04:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:52,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:52,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:04:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:52,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:52,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:52,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:52,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:52,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:52,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:52,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:52,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:52,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:52,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446886584] [2020-09-21 11:04:52,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:52,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:04:52,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868079527] [2020-09-21 11:04:52,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:04:52,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:52,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:04:52,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:04:52,374 INFO L87 Difference]: Start difference. First operand 335 states and 383 transitions. Second operand 9 states. [2020-09-21 11:04:53,493 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:53,782 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:04:54,105 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:54,397 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:55,503 INFO L93 Difference]: Finished difference Result 750 states and 926 transitions. [2020-09-21 11:04:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:04:55,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:04:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:55,507 INFO L225 Difference]: With dead ends: 750 [2020-09-21 11:04:55,508 INFO L226 Difference]: Without dead ends: 439 [2020-09-21 11:04:55,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:04:55,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-09-21 11:04:55,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 345. [2020-09-21 11:04:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-21 11:04:55,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-09-21 11:04:55,578 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 83 [2020-09-21 11:04:55,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:55,578 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-09-21 11:04:55,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:04:55,579 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-09-21 11:04:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:04:55,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:55,580 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] [2020-09-21 11:04:55,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:04:55,580 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1596500618, now seen corresponding path program 1 times [2020-09-21 11:04:55,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:55,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970938301] [2020-09-21 11:04:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:04:55,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -54 [2020-09-21 11:04:55,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 54 [2020-09-21 11:04:55,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:04:55,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:04:55,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:55,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:04:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:55,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,861 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:55,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:55,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:55,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:55,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:55,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:55,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:55,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:55,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:55,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:55,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:55,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:55,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:04:55,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:04:55,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:04:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:55,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:04:55,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:04:55,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:04:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,995 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,996 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:55,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:04:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:04:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:56,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:56,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:56,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:56,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:56,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:56,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:56,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:04:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:56,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:56,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:56,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:56,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:56,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:56,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:56,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:56,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:56,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:56,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:04:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:56,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:56,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:56,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:56,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:56,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:56,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:56,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:56,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:04:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:56,061 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:56,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:56,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:56,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:56,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970938301] [2020-09-21 11:04:56,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:56,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:04:56,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19355482] [2020-09-21 11:04:56,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:04:56,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:56,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:04:56,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:04:56,080 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 8 states. [2020-09-21 11:04:56,863 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:57,172 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:57,472 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:58,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:58,401 INFO L93 Difference]: Finished difference Result 768 states and 960 transitions. [2020-09-21 11:04:58,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:04:58,402 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-21 11:04:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:58,406 INFO L225 Difference]: With dead ends: 768 [2020-09-21 11:04:58,406 INFO L226 Difference]: Without dead ends: 447 [2020-09-21 11:04:58,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:04:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-21 11:04:58,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 353. [2020-09-21 11:04:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-21 11:04:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2020-09-21 11:04:58,492 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 83 [2020-09-21 11:04:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:58,493 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2020-09-21 11:04:58,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:04:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2020-09-21 11:04:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:04:58,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:58,496 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] [2020-09-21 11:04:58,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:04:58,497 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:58,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:58,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1672974679, now seen corresponding path program 1 times [2020-09-21 11:04:58,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:58,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697325182] [2020-09-21 11:04:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:58,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:58,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:58,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:58,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:04:58,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-21 11:04:58,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:04:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 11:04:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,026 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:59,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:04:59,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:59,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:59,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:59,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:59,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:59,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:04:59,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:04:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:04:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,204 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:04:59,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:04:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:59,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:59,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:04:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:04:59,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:04:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:59,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:59,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:04:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:59,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:59,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:59,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:59,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:59,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:59,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:59,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:59,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:59,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:59,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697325182] [2020-09-21 11:04:59,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:59,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:04:59,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488757342] [2020-09-21 11:04:59,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:04:59,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:59,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:04:59,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:04:59,300 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand 7 states. [2020-09-21 11:04:59,684 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:00,224 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:02,295 INFO L93 Difference]: Finished difference Result 1077 states and 1388 transitions. [2020-09-21 11:05:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:05:02,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-09-21 11:05:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:02,301 INFO L225 Difference]: With dead ends: 1077 [2020-09-21 11:05:02,301 INFO L226 Difference]: Without dead ends: 748 [2020-09-21 11:05:02,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:05:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-09-21 11:05:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 649. [2020-09-21 11:05:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-09-21 11:05:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 771 transitions. [2020-09-21 11:05:02,434 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 771 transitions. Word has length 83 [2020-09-21 11:05:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:02,438 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 771 transitions. [2020-09-21 11:05:02,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:05:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 771 transitions. [2020-09-21 11:05:02,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 11:05:02,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:02,441 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] [2020-09-21 11:05:02,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:05:02,442 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:02,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:02,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1457224847, now seen corresponding path program 1 times [2020-09-21 11:05:02,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:02,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046274086] [2020-09-21 11:05:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:05:02,502 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:05:02,503 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:05:02,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:05:02,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:05:02 BoogieIcfgContainer [2020-09-21 11:05:02,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:05:02,551 INFO L168 Benchmark]: Toolchain (without parser) took 32077.90 ms. Allocated memory was 140.0 MB in the beginning and 629.7 MB in the end (delta: 489.7 MB). Free memory was 98.8 MB in the beginning and 461.6 MB in the end (delta: -362.8 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:02,556 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:05:02,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.83 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 98.2 MB in the beginning and 170.2 MB in the end (delta: -72.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:02,564 INFO L168 Benchmark]: Boogie Preprocessor took 106.93 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:02,565 INFO L168 Benchmark]: RCFGBuilder took 1195.68 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 166.2 MB in the beginning and 196.5 MB in the end (delta: -30.3 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:02,566 INFO L168 Benchmark]: TraceAbstraction took 30075.19 ms. Allocated memory was 234.4 MB in the beginning and 629.7 MB in the end (delta: 395.3 MB). Free memory was 196.5 MB in the beginning and 461.6 MB in the end (delta: -265.1 MB). Peak memory consumption was 130.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:02,570 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.83 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 98.2 MB in the beginning and 170.2 MB in the end (delta: -72.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.93 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.68 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 166.2 MB in the beginning and 196.5 MB in the end (delta: -30.3 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30075.19 ms. Allocated memory was 234.4 MB in the beginning and 629.7 MB in the end (delta: 395.3 MB). Free memory was 196.5 MB in the beginning and 461.6 MB in the end (delta: -265.1 MB). Peak memory consumption was 130.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) [L788] CALL waterRise() [L850] COND TRUE waterLevel < 2 [L851] waterLevel = waterLevel + 1 [L788] RET waterRise() [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) [L798] CALL changeMethaneLevel() [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 [L798] RET changeMethaneLevel() [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L819] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] CALL processEnvironment() [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L668] CALL processEnvironment__wrappee__highWaterSensor() [L624] int tmp ; [L627] COND TRUE ! pumpRunning [L629] CALL, EXPR isHighWaterLevel() [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L753] CALL, EXPR isHighWaterSensorDry() [L912] int retValue_acc ; [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); [L753] RET, EXPR isHighWaterSensorDry() [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); [L629] RET, EXPR isHighWaterLevel() [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) [L633] CALL activatePump() [L678] pumpRunning = 1 [L633] RET activatePump() [L668] RET processEnvironment__wrappee__highWaterSensor() [L604] RET processEnvironment() [L610] CALL __utac_acc__Specification1_spec__1() [L514] int tmp ; [L515] int tmp___0 ; [L519] CALL, EXPR isMethaneLevelCritical() [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); [L519] RET, EXPR isMethaneLevelCritical() [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) [L523] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L523] RET, EXPR isPumpRunning() [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) [L527] CALL __automaton_fail() [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1013 SDtfs, 1782 SDslu, 819 SDs, 0 SdLazy, 3915 SolverSat, 1112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 219 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=649occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 574 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 187490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...