/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:07:44,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:07:44,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:07:44,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:07:44,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:07:44,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:07:44,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:07:44,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:07:44,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:07:44,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:07:44,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:07:44,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:07:44,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:07:44,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:07:44,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:07:44,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:07:44,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:07:44,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:07:44,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:07:44,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:07:44,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:07:44,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:07:44,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:07:44,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:07:44,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:07:44,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:07:44,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:07:44,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:07:44,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:07:44,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:07:44,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:07:44,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:07:44,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:07:44,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:07:44,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:07:44,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:07:44,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:07:44,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:07:44,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:07:44,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:07:44,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:07:44,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:07:44,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:07:44,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:07:44,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:07:44,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:07:44,113 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:07:44,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:07:44,113 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:07:44,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:07:44,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:07:44,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:07:44,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:07:44,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:07:44,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:07:44,115 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:07:44,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:07:44,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:07:44,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:07:44,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:07:44,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:07:44,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:07:44,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:07:44,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:44,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:07:44,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:07:44,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:07:44,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:07:44,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:07:44,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:07:44,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:07:44,118 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:07:44,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:07:44,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:07:44,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:07:44,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:07:44,652 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:07:44,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-24 19:07:44,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29f87ba22/13ba7760a542481896a8fd635c5a74b0/FLAG06b819609 [2020-09-24 19:07:45,405 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:07:45,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-24 19:07:45,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29f87ba22/13ba7760a542481896a8fd635c5a74b0/FLAG06b819609 [2020-09-24 19:07:45,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29f87ba22/13ba7760a542481896a8fd635c5a74b0 [2020-09-24 19:07:45,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:07:45,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:07:45,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:45,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:07:45,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:07:45,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:45" (1/1) ... [2020-09-24 19:07:45,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:45, skipping insertion in model container [2020-09-24 19:07:45,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:45" (1/1) ... [2020-09-24 19:07:45,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:07:45,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:07:46,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:46,210 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:07:46,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:46,433 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:07:46,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46 WrapperNode [2020-09-24 19:07:46,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:46,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:07:46,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:07:46,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:07:46,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... [2020-09-24 19:07:46,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:07:46,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:07:46,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:07:46,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:07:46,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:07:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:07:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:07:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:07:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:07:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:07:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:07:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:07:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:07:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:07:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:07:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:07:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:07:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:07:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:07:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:07:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:07:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:07:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:07:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:07:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:07:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:07:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:07:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:07:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:07:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:07:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:07:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:07:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:07:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:07:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:07:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:07:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:07:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:07:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:07:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:07:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:07:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:07:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:07:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:07:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:07:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:07:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:07:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:07:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:07:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:07:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:07:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:07:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:07:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:07:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:07:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:07:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:07:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:07:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:07:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:07:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:07:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:07:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:07:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:07:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:07:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:07:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:07:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:07:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:07:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:07:47,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:07:47,995 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:07:48,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:48 BoogieIcfgContainer [2020-09-24 19:07:48,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:07:48,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:07:48,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:07:48,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:07:48,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:07:45" (1/3) ... [2020-09-24 19:07:48,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644c1511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:48, skipping insertion in model container [2020-09-24 19:07:48,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:46" (2/3) ... [2020-09-24 19:07:48,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644c1511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:48, skipping insertion in model container [2020-09-24 19:07:48,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:48" (3/3) ... [2020-09-24 19:07:48,013 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-09-24 19:07:48,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:07:48,037 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:07:48,060 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:07:48,092 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:07:48,092 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:07:48,092 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:07:48,092 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:07:48,093 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:07:48,093 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:07:48,093 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:07:48,093 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:07:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-24 19:07:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:07:48,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:48,141 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] [2020-09-24 19:07:48,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:48,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times [2020-09-24 19:07:48,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:48,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733702552] [2020-09-24 19:07:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:07:49,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:49,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-09-24 19:07:49,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:07:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:49,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 19:07:50,006 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:50,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:50,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 19:07:50,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:50,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:50,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:50,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:50,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:50,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:50,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:50,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:50,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:50,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:50,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:07:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:50,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:50,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:50,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:07:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:50,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:50,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:50,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:50,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733702552] [2020-09-24 19:07:50,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:50,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:07:50,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714811039] [2020-09-24 19:07:50,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:07:50,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:50,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:07:50,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:07:50,405 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 3 states. [2020-09-24 19:07:51,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:51,636 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-09-24 19:07:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:07:51,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:07:51,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:51,660 INFO L225 Difference]: With dead ends: 413 [2020-09-24 19:07:51,660 INFO L226 Difference]: Without dead ends: 263 [2020-09-24 19:07:51,667 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 [2020-09-24 19:07:51,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-24 19:07:51,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-24 19:07:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 19:07:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2020-09-24 19:07:51,771 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 153 [2020-09-24 19:07:51,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:51,772 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2020-09-24 19:07:51,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:07:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2020-09-24 19:07:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:07:51,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:51,777 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] [2020-09-24 19:07:51,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:07:51,778 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:51,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:51,779 INFO L82 PathProgramCache]: Analyzing trace with hash 998854656, now seen corresponding path program 1 times [2020-09-24 19:07:51,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:51,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889920425] [2020-09-24 19:07:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:52,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:52,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:52,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:52,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:07:52,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:52,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-09-24 19:07:52,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:07:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 19:07:52,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:53,217 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:53,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:53,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-24 19:07:53,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:53,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:07:53,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:53,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:53,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 64 [2020-09-24 19:07:53,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:53,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:53,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:53,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:53,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:53,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:53,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:53,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:07:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:53,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:53,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:53,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:53,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:53,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:53,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:53,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:53,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:07:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:53,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:53,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:53,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889920425] [2020-09-24 19:07:53,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:53,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:07:53,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412819784] [2020-09-24 19:07:53,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:07:53,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:53,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:07:53,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:53,831 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 4 states. [2020-09-24 19:07:54,354 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:07:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:55,149 INFO L93 Difference]: Finished difference Result 377 states and 436 transitions. [2020-09-24 19:07:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:07:55,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:07:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:55,155 INFO L225 Difference]: With dead ends: 377 [2020-09-24 19:07:55,155 INFO L226 Difference]: Without dead ends: 263 [2020-09-24 19:07:55,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-24 19:07:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-24 19:07:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 19:07:55,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-24 19:07:55,202 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-09-24 19:07:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:55,203 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-24 19:07:55,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:07:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-24 19:07:55,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 19:07:55,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:55,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:55,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:07:55,207 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:55,207 INFO L82 PathProgramCache]: Analyzing trace with hash -945021933, now seen corresponding path program 1 times [2020-09-24 19:07:55,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:55,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787037887] [2020-09-24 19:07:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:55,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:07:56,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-24 19:07:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:07:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,749 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:56,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 19:07:56,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:56,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:56,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:56,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:56,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:56,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:56,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:56,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:56,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:56,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:56,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 19:07:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:07:56,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:56,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:07:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:56,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:56,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:56,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:56,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:56,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:07:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:57,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:57,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:57,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:57,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:57,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:57,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:57,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:57,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:57,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:07:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:57,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:57,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:57,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:57,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:57,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:57,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:57,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:57,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 19:07:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:57,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:57,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:57,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:57,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:57,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:57,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:57,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:57,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787037887] [2020-09-24 19:07:57,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:57,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:07:57,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393039298] [2020-09-24 19:07:57,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:07:57,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:57,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:07:57,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:57,057 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 5 states. [2020-09-24 19:07:57,671 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:58,593 INFO L93 Difference]: Finished difference Result 354 states and 404 transitions. [2020-09-24 19:07:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:07:58,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-24 19:07:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:58,597 INFO L225 Difference]: With dead ends: 354 [2020-09-24 19:07:58,598 INFO L226 Difference]: Without dead ends: 270 [2020-09-24 19:07:58,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-24 19:07:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 214. [2020-09-24 19:07:58,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 19:07:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-09-24 19:07:58,636 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 162 [2020-09-24 19:07:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:58,637 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-09-24 19:07:58,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:07:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-09-24 19:07:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:07:58,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:58,640 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] [2020-09-24 19:07:58,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:07:58,640 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:58,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:58,641 INFO L82 PathProgramCache]: Analyzing trace with hash -451135243, now seen corresponding path program 1 times [2020-09-24 19:07:58,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:58,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277141040] [2020-09-24 19:07:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:58,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:59,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:59,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:07:59,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-24 19:07:59,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:07:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:07:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 19:07:59,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:00,186 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:00,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:00,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 19:08:00,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:08:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:00,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:08:00,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:00,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:08:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:08:00,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:00,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 19:08:00,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:08:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:08:00,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:08:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:00,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:08:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:00,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:08:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:08:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:00,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:00,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277141040] [2020-09-24 19:08:00,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:00,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:08:00,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742716800] [2020-09-24 19:08:00,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:08:00,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:00,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:08:00,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:08:00,645 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 9 states. [2020-09-24 19:08:01,150 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:02,967 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:03,265 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:03,633 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:03,959 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:04,273 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:04,725 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:05,021 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:05,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:05,424 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-09-24 19:08:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:08:05,424 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 19:08:05,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:05,428 INFO L225 Difference]: With dead ends: 489 [2020-09-24 19:08:05,429 INFO L226 Difference]: Without dead ends: 385 [2020-09-24 19:08:05,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:08:05,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-24 19:08:05,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 310. [2020-09-24 19:08:05,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-09-24 19:08:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 341 transitions. [2020-09-24 19:08:05,482 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 341 transitions. Word has length 171 [2020-09-24 19:08:05,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:05,483 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 341 transitions. [2020-09-24 19:08:05,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:08:05,484 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 341 transitions. [2020-09-24 19:08:05,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 19:08:05,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:05,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:05,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:08:05,488 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:05,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:05,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1927914565, now seen corresponding path program 1 times [2020-09-24 19:08:05,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:05,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283982309] [2020-09-24 19:08:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:05,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:05,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 19:08:06,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-09-24 19:08:06,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:08:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:08:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:08:06,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:08:06,960 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:06,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:07,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:08:07,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:07,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:08:07,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:07,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:08:07,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:07,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:07,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:07,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:08:07,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:08:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:08:07,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:08:07,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:08:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:08:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:08:07,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:07,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:08:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:08:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:08:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:07,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:08:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:07,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:07,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:07,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:08:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:07,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:07,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:07,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:08:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:07,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:07,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 19:08:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:07,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:07,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283982309] [2020-09-24 19:08:07,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:07,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:08:07,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273030662] [2020-09-24 19:08:07,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:08:07,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:07,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:08:07,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:08:07,291 INFO L87 Difference]: Start difference. First operand 310 states and 341 transitions. Second operand 7 states. [2020-09-24 19:08:08,353 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:08,582 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:10,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:10,777 INFO L93 Difference]: Finished difference Result 744 states and 891 transitions. [2020-09-24 19:08:10,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:08:10,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-24 19:08:10,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:10,783 INFO L225 Difference]: With dead ends: 744 [2020-09-24 19:08:10,784 INFO L226 Difference]: Without dead ends: 544 [2020-09-24 19:08:10,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:08:10,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-09-24 19:08:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 485. [2020-09-24 19:08:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-09-24 19:08:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 551 transitions. [2020-09-24 19:08:10,858 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 551 transitions. Word has length 176 [2020-09-24 19:08:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:10,859 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 551 transitions. [2020-09-24 19:08:10,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:08:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 551 transitions. [2020-09-24 19:08:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 19:08:10,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:10,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:10,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:08:10,864 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:10,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:10,864 INFO L82 PathProgramCache]: Analyzing trace with hash -481228589, now seen corresponding path program 1 times [2020-09-24 19:08:10,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:10,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156915078] [2020-09-24 19:08:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:08:10,932 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:08:10,932 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:08:10,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:08:10,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:08:10 BoogieIcfgContainer [2020-09-24 19:08:10,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:08:10,969 INFO L168 Benchmark]: Toolchain (without parser) took 25286.60 ms. Allocated memory was 138.4 MB in the beginning and 624.4 MB in the end (delta: 486.0 MB). Free memory was 100.6 MB in the beginning and 225.5 MB in the end (delta: -124.9 MB). Peak memory consumption was 361.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:10,970 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 19:08:10,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.00 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 100.0 MB in the beginning and 171.2 MB in the end (delta: -71.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:10,972 INFO L168 Benchmark]: Boogie Preprocessor took 117.39 ms. Allocated memory is still 200.8 MB. Free memory was 171.2 MB in the beginning and 166.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:10,973 INFO L168 Benchmark]: RCFGBuilder took 1450.11 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 166.9 MB in the beginning and 181.0 MB in the end (delta: -14.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:10,974 INFO L168 Benchmark]: TraceAbstraction took 22962.94 ms. Allocated memory was 232.3 MB in the beginning and 624.4 MB in the end (delta: 392.2 MB). Free memory was 181.0 MB in the beginning and 225.5 MB in the end (delta: -44.5 MB). Peak memory consumption was 347.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:10,978 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 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.00 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 100.0 MB in the beginning and 171.2 MB in the end (delta: -71.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.39 ms. Allocated memory is still 200.8 MB. Free memory was 171.2 MB in the beginning and 166.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1450.11 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 166.9 MB in the beginning and 181.0 MB in the end (delta: -14.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22962.94 ms. Allocated memory was 232.3 MB in the beginning and 624.4 MB in the end (delta: 392.2 MB). Free memory was 181.0 MB in the beginning and 225.5 MB in the end (delta: -44.5 MB). Peak memory consumption was 347.7 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: [L95] int pumpRunning = 0; [L96] int systemActive = 1; [L297] int cleanupTimeShifts = 4; [L562] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L370] int retValue_acc ; [L371] int tmp ; [L375] FCALL select_helpers() [L376] FCALL select_features() [L377] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L377] RET, EXPR valid_product() [L377] tmp = valid_product() [L379] COND TRUE \read(tmp) [L381] FCALL setup() [L382] CALL runTest() [L364] CALL test() [L233] int splverifierCounter ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int tmp___1 ; [L237] int tmp___2 ; [L240] splverifierCounter = 0 [L242] COND TRUE 1 [L244] COND TRUE splverifierCounter < 4 [L250] tmp = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp) [L254] CALL waterRise() [L778] COND TRUE waterLevel < 2 [L779] waterLevel = waterLevel + 1 [L254] RET waterRise() [L260] tmp___0 = __VERIFIER_nondet_int() [L262] COND FALSE !(\read(tmp___0)) [L270] tmp___2 = __VERIFIER_nondet_int() [L272] COND TRUE \read(tmp___2) [L285] CALL timeShift() [L103] COND FALSE !(\read(pumpRunning)) [L110] COND TRUE \read(systemActive) [L112] CALL processEnvironment() [L132] int tmp ; [L135] COND FALSE !(\read(pumpRunning)) [L150] FCALL processEnvironment__wrappee__base() [L112] RET processEnvironment() [L118] CALL __utac_acc__Specification3_spec__1() [L841] int tmp ; [L842] int tmp___0 ; [L843] int tmp___1 ; [L847] CALL, EXPR isMethaneLevelCritical() [L799] int retValue_acc ; [L802] retValue_acc = methaneLevelCritical [L803] return (retValue_acc); [L847] RET, EXPR isMethaneLevelCritical() [L847] tmp = isMethaneLevelCritical() [L849] COND FALSE !(\read(tmp)) [L853] CALL, EXPR getWaterLevel() [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L853] RET, EXPR getWaterLevel() [L853] tmp___0 = getWaterLevel() [L855] COND TRUE tmp___0 == 2 [L857] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L857] RET, EXPR isPumpRunning() [L857] tmp___1 = isPumpRunning() [L859] COND FALSE !(\read(tmp___1)) [L863] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1146 SDtfs, 1528 SDslu, 1095 SDs, 0 SdLazy, 2406 SolverSat, 442 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=485occurred in iteration=5, 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, 5 MinimizatonAttempts, 268 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 992 NumberOfCodeBlocks, 992 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 811 ConstructedInterpolants, 0 QuantifiedInterpolants, 317456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...