/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:22:22,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:22:22,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:22:22,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:22:22,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:22:22,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:22:22,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:22:22,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:22:22,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:22:22,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:22:23,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:22:23,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:22:23,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:22:23,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:22:23,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:22:23,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:22:23,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:22:23,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:22:23,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:22:23,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:22:23,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:22:23,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:22:23,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:22:23,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:22:23,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:22:23,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:22:23,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:22:23,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:22:23,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:22:23,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:22:23,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:22:23,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:22:23,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:22:23,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:22:23,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:22:23,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:22:23,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:22:23,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:22:23,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:22:23,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:22:23,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:22:23,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:22:23,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:22:23,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:22:23,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:22:23,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:22:23,063 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:22:23,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:22:23,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:22:23,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:22:23,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:22:23,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:22:23,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:22:23,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:22:23,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:22:23,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:22:23,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:22:23,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:22:23,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:22:23,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:22:23,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:22:23,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:22:23,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:22:23,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:22:23,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:22:23,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:22:23,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:22:23,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:22:23,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:22:23,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:22:23,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:22:23,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:22:23,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:22:23,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:22:23,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:22:23,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:22:23,564 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:22:23,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-25 06:22:23,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22b5685f5/a333a96f865f4309a25266a49a721198/FLAGe26522e81 [2020-09-25 06:22:24,283 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:22:24,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-25 06:22:24,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22b5685f5/a333a96f865f4309a25266a49a721198/FLAGe26522e81 [2020-09-25 06:22:24,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22b5685f5/a333a96f865f4309a25266a49a721198 [2020-09-25 06:22:24,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:22:24,575 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:22:24,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:22:24,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:22:24,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:22:24,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:22:24" (1/1) ... [2020-09-25 06:22:24,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:24, skipping insertion in model container [2020-09-25 06:22:24,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:22:24" (1/1) ... [2020-09-25 06:22:24,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:22:24,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:22:24,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:22:25,009 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:22:25,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:22:25,221 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:22:25,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25 WrapperNode [2020-09-25 06:22:25,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:22:25,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:22:25,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:22:25,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:22:25,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... [2020-09-25 06:22:25,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:22:25,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:22:25,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:22:25,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:22:25,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:22:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:22:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:22:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:22:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:22:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:22:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:22:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:22:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:22:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:22:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:22:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:22:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:22:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:22:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:22:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:22:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:22:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:22:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:22:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:22:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:22:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:22:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:22:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:22:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:22:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:22:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:22:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:22:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:22:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:22:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:22:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:22:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:22:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:22:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:22:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:22:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:22:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:22:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:22:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:22:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:22:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:22:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:22:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:22:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:22:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:22:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:22:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:22:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:22:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:22:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:22:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:22:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:22:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:22:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:22:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:22:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:22:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:22:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:22:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:22:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:22:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:22:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:22:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:22:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:22:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:22:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:22:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:22:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:22:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:22:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:22:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:22:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:22:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:22:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:22:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:22:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:22:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:22:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:22:26,698 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:22:26,698 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:22:26,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:22:26 BoogieIcfgContainer [2020-09-25 06:22:26,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:22:26,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:22:26,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:22:26,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:22:26,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:22:24" (1/3) ... [2020-09-25 06:22:26,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39207d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:22:26, skipping insertion in model container [2020-09-25 06:22:26,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:22:25" (2/3) ... [2020-09-25 06:22:26,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39207d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:22:26, skipping insertion in model container [2020-09-25 06:22:26,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:22:26" (3/3) ... [2020-09-25 06:22:26,717 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-09-25 06:22:26,730 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:22:26,743 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:22:26,767 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:22:26,807 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:22:26,807 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:22:26,807 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:22:26,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:22:26,808 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:22:26,808 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:22:26,808 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:22:26,808 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:22:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states. [2020-09-25 06:22:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:22:26,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:26,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:26,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:26,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times [2020-09-25 06:22:26,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:26,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302854828] [2020-09-25 06:22:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:27,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:29,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:22:32,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:22:32,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 06:22:32,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:22:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:22:32,663 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:22:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:22:32,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 06:22:32,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 06:22:32,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:22:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:32,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:22:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:32,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:32,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:32,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:32,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:22:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:32,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:32,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:32,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:32,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:22:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:22:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:32,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:32,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:32,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:22:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:32,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:32,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:22:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:32,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:32,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:32,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:32,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:32,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:32,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:33,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302854828] [2020-09-25 06:22:33,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:33,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:22:33,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563015805] [2020-09-25 06:22:33,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:22:33,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:33,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:22:33,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:22:33,045 INFO L87 Difference]: Start difference. First operand 262 states. Second operand 3 states. [2020-09-25 06:22:34,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:34,395 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-25 06:22:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:22:34,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:22:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:34,417 INFO L225 Difference]: With dead ends: 374 [2020-09-25 06:22:34,417 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 06:22:34,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:22:34,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 06:22:34,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-25 06:22:34,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 06:22:34,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-25 06:22:34,603 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-09-25 06:22:34,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:34,604 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-25 06:22:34,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:22:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-25 06:22:34,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:22:34,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:34,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:34,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:22:34,610 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:34,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:34,611 INFO L82 PathProgramCache]: Analyzing trace with hash -116924770, now seen corresponding path program 1 times [2020-09-25 06:22:34,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:34,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127872945] [2020-09-25 06:22:34,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:34,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:34,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:36,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:39,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:39,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:22:39,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:22:39,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:22:39,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:39,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:22:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:22:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,005 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:22:40,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:22:40,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 06:22:40,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:22:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:40,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:22:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:40,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:40,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:22:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:40,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:22:40,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:40,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:22:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:40,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:40,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:22:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:40,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:40,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:22:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:40,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:40,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:22:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:40,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:40,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:40,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:40,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:40,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:40,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:40,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:40,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:40,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127872945] [2020-09-25 06:22:40,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:40,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:22:40,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828521286] [2020-09-25 06:22:40,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:22:40,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:40,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:22:40,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:22:40,250 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-09-25 06:22:40,944 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:41,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:41,546 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-09-25 06:22:41,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:22:41,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:22:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:41,550 INFO L225 Difference]: With dead ends: 287 [2020-09-25 06:22:41,550 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 06:22:41,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:22:41,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 06:22:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-09-25 06:22:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 06:22:41,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-09-25 06:22:41,589 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-09-25 06:22:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:41,590 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-09-25 06:22:41,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:22:41,590 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-09-25 06:22:41,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:22:41,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:41,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:41,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:22:41,594 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:41,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:41,594 INFO L82 PathProgramCache]: Analyzing trace with hash -529547900, now seen corresponding path program 1 times [2020-09-25 06:22:41,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:41,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386979770] [2020-09-25 06:22:41,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:41,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:22:44,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:22:44,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2850 [2020-09-25 06:22:44,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:22:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:22:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,807 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:22:44,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:22:44,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:22:44,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:22:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:44,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:44,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:22:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:44,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:44,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:22:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:44,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:44,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:22:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:44,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:44,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:22:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:44,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:44,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:44,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:44,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:22:44,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:22:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:44,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:44,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:44,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:44,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:44,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 06:22:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:45,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:45,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:45,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:45,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:45,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:45,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:45,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:45,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:45,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:45,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 06:22:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:45,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:45,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:45,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:45,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:45,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:45,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386979770] [2020-09-25 06:22:45,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:45,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:22:45,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470691600] [2020-09-25 06:22:45,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:22:45,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:45,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:22:45,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:22:45,043 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 5 states. [2020-09-25 06:22:45,624 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:22:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:46,298 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-09-25 06:22:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:22:46,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 06:22:46,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:46,302 INFO L225 Difference]: With dead ends: 333 [2020-09-25 06:22:46,308 INFO L226 Difference]: Without dead ends: 248 [2020-09-25 06:22:46,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:22:46,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-25 06:22:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 195. [2020-09-25 06:22:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 06:22:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-09-25 06:22:46,355 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 167 [2020-09-25 06:22:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:46,356 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-09-25 06:22:46,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:22:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-09-25 06:22:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:22:46,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:46,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:46,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:22:46,359 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:46,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:46,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1664545682, now seen corresponding path program 1 times [2020-09-25 06:22:46,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:46,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390475818] [2020-09-25 06:22:46,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:22:48,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1740 [2020-09-25 06:22:48,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:22:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:22:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:22:48,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:48,570 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:22:48,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:22:48,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 06:22:48,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:22:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:48,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:22:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:48,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:48,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:48,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:22:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:48,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:48,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:48,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:48,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:22:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:48,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:22:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:22:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:48,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:48,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:48,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:22:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:48,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:48,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:22:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:48,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:22:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:48,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:48,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:48,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:48,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:22:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:48,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:48,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:48,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:48,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:22:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:48,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:22:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:22:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:48,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 06:22:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:48,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:48,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:48,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:48,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:48,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:48,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:48,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:22:49,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390475818] [2020-09-25 06:22:49,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:49,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:22:49,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436664302] [2020-09-25 06:22:49,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:22:49,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:49,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:22:49,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:22:49,031 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 10 states. [2020-09-25 06:22:49,764 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:22:51,285 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:22:51,631 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:51,987 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:52,265 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:22:52,585 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:22:52,899 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:22:53,203 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:53,604 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:22:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:54,177 INFO L93 Difference]: Finished difference Result 433 states and 511 transitions. [2020-09-25 06:22:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:22:54,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-09-25 06:22:54,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:54,184 INFO L225 Difference]: With dead ends: 433 [2020-09-25 06:22:54,184 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 06:22:54,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:22:54,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 06:22:54,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 273. [2020-09-25 06:22:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 06:22:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-25 06:22:54,240 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 170 [2020-09-25 06:22:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:54,241 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-25 06:22:54,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:22:54,241 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-25 06:22:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 06:22:54,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:54,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:54,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:22:54,245 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:54,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:54,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times [2020-09-25 06:22:54,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:54,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851439556] [2020-09-25 06:22:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:22:54,331 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:22:54,331 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:22:54,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:22:54,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:22:54 BoogieIcfgContainer [2020-09-25 06:22:54,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:22:54,366 INFO L168 Benchmark]: Toolchain (without parser) took 29794.17 ms. Allocated memory was 146.8 MB in the beginning and 564.1 MB in the end (delta: 417.3 MB). Free memory was 100.8 MB in the beginning and 513.5 MB in the end (delta: -412.7 MB). Peak memory consumption was 428.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:22:54,367 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:22:54,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.87 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.1 MB in the beginning and 174.2 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:22:54,369 INFO L168 Benchmark]: Boogie Preprocessor took 118.11 ms. Allocated memory is still 203.4 MB. Free memory was 174.2 MB in the beginning and 170.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:22:54,369 INFO L168 Benchmark]: RCFGBuilder took 1359.57 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 170.1 MB in the beginning and 186.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:22:54,370 INFO L168 Benchmark]: TraceAbstraction took 27656.08 ms. Allocated memory was 237.0 MB in the beginning and 564.1 MB in the end (delta: 327.2 MB). Free memory was 184.6 MB in the beginning and 513.5 MB in the end (delta: -328.9 MB). Peak memory consumption was 422.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:22:54,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.87 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.1 MB in the beginning and 174.2 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.11 ms. Allocated memory is still 203.4 MB. Free memory was 174.2 MB in the beginning and 170.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1359.57 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 170.1 MB in the beginning and 186.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27656.08 ms. Allocated memory was 237.0 MB in the beginning and 564.1 MB in the end (delta: 327.2 MB). Free memory was 184.6 MB in the beginning and 513.5 MB in the end (delta: -328.9 MB). Peak memory consumption was 422.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; [L761] FCALL select_helpers() [L762] FCALL select_features() [L763] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L763] RET, EXPR valid_product() [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) [L767] FCALL setup() [L768] CALL runTest() [L750] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) [L638] CALL waterRise() [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 [L638] RET waterRise() [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L658] CALL startSystem() [L573] systemActive = 1 [L658] RET startSystem() [L671] CALL timeShift() [L470] COND FALSE !(\read(pumpRunning)) [L477] COND TRUE \read(systemActive) [L479] FCALL processEnvironment() [L485] CALL __utac_acc__Specification3_spec__1() [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; [L586] CALL, EXPR isMethaneLevelCritical() [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); [L586] RET, EXPR isMethaneLevelCritical() [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) [L592] CALL, EXPR getWaterLevel() [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); [L592] RET, EXPR getWaterLevel() [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 [L596] CALL, EXPR isPumpRunning() [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); [L596] RET, EXPR isPumpRunning() [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) [L602] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 974 SDslu, 743 SDs, 0 SdLazy, 1458 SolverSat, 310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 197 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 251084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...