/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:23:23,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:23:23,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:23:24,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:23:24,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:23:24,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:23:24,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:23:24,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:23:24,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:23:24,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:23:24,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:23:24,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:23:24,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:23:24,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:23:24,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:23:24,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:23:24,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:23:24,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:23:24,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:23:24,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:23:24,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:23:24,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:23:24,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:23:24,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:23:24,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:23:24,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:23:24,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:23:24,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:23:24,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:23:24,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:23:24,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:23:24,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:23:24,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:23:24,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:23:24,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:23:24,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:23:24,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:23:24,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:23:24,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:23:24,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:23:24,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:23:24,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:23:24,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:23:24,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:23:24,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:23:24,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:23:24,123 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:23:24,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:23:24,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:23:24,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:23:24,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:23:24,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:23:24,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:23:24,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:23:24,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:23:24,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:23:24,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:23:24,128 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:23:24,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:23:24,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:23:24,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:23:24,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:23:24,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:23:24,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:24,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:23:24,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:23:24,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:23:24,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:23:24,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:23:24,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:23:24,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:23:24,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:23:24,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:23:24,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:23:24,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:23:24,667 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:23:24,669 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:23:24,670 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-24 22:23:24,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/623789d86/cbbb4b26e3ae42159a2c13858d11ecb4/FLAG1e506276c [2020-09-24 22:23:25,372 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:23:25,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-24 22:23:25,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/623789d86/cbbb4b26e3ae42159a2c13858d11ecb4/FLAG1e506276c [2020-09-24 22:23:25,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/623789d86/cbbb4b26e3ae42159a2c13858d11ecb4 [2020-09-24 22:23:25,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:23:25,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:23:25,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:25,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:23:25,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:23:25,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:25" (1/1) ... [2020-09-24 22:23:25,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:25, skipping insertion in model container [2020-09-24 22:23:25,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:25" (1/1) ... [2020-09-24 22:23:25,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:23:25,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:23:26,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:26,135 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:23:26,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:26,373 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:23:26,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26 WrapperNode [2020-09-24 22:23:26,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:26,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:23:26,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:23:26,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:23:26,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:23:26,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:23:26,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:23:26,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:23:26,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:26,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:23:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:23:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:23:26,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:23:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:23:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:23:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:23:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:23:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:23:26,607 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:23:26,607 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:23:26,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:23:26,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:23:26,608 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:23:26,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:23:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:23:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:23:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:23:26,610 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:23:26,610 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:23:26,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:23:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:23:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:23:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:23:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:23:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:23:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:23:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:23:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:23:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:23:26,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:23:26,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:23:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:23:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:23:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:23:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:23:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:23:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:23:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:23:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:23:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:23:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:23:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:23:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:23:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:23:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:23:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:23:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:23:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:23:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:23:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:23:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:23:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:23:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:23:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:23:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:23:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:23:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:23:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:23:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:23:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:23:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:23:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:23:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:23:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:23:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:23:27,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:23:27,794 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:23:27,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:27 BoogieIcfgContainer [2020-09-24 22:23:27,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:23:27,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:23:27,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:23:27,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:23:27,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:23:25" (1/3) ... [2020-09-24 22:23:27,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436fadb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:27, skipping insertion in model container [2020-09-24 22:23:27,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26" (2/3) ... [2020-09-24 22:23:27,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436fadb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:27, skipping insertion in model container [2020-09-24 22:23:27,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:27" (3/3) ... [2020-09-24 22:23:27,811 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-09-24 22:23:27,823 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:23:27,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:23:27,859 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:23:27,889 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:23:27,889 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:23:27,890 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:23:27,890 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:23:27,890 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:23:27,890 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:23:27,890 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:23:27,890 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:23:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-24 22:23:27,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:23:27,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:27,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:27,933 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:27,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:27,940 INFO L82 PathProgramCache]: Analyzing trace with hash -955195086, now seen corresponding path program 1 times [2020-09-24 22:23:27,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:27,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308378907] [2020-09-24 22:23:27,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:28,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:29,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:30,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:33,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:33,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 22:23:33,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:33,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:33,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:23:33,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:23:33,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:23:33,872 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:33,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:33,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:34,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 22:23:34,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:34,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:34,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:34,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:34,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:34,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:34,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:23:34,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:34,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:34,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:23:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:23:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:34,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:23:34,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:23:34,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308378907] [2020-09-24 22:23:34,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:34,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:23:34,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508786612] [2020-09-24 22:23:34,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:23:34,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:34,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:23:34,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:23:34,287 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 8 states. [2020-09-24 22:23:34,962 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:23:36,073 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:36,405 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:23:36,784 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:37,094 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:23:37,403 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:38,128 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:23:38,439 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:38,829 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:39,813 INFO L93 Difference]: Finished difference Result 524 states and 656 transitions. [2020-09-24 22:23:39,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:23:39,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:23:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:39,835 INFO L225 Difference]: With dead ends: 524 [2020-09-24 22:23:39,836 INFO L226 Difference]: Without dead ends: 357 [2020-09-24 22:23:39,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:23:39,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-24 22:23:39,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 315. [2020-09-24 22:23:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-24 22:23:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2020-09-24 22:23:39,971 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 142 [2020-09-24 22:23:39,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:39,976 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2020-09-24 22:23:39,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:23:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2020-09-24 22:23:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 22:23:39,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:39,990 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:39,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:23:39,991 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:39,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:39,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1923951786, now seen corresponding path program 1 times [2020-09-24 22:23:39,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:39,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825235529] [2020-09-24 22:23:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:40,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:40,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:40,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:40,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:42,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:42,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-24 22:23:45,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:23:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 22:23:45,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 22:23:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,392 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:45,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:45,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 22:23:45,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:45,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:45,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:45,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:45,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:45,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:23:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:23:45,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:23:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:45,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:45,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:45,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:23:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:23:45,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:23:45,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:23:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:45,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:23:45,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 22:23:45,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:23:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:23:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:23:45,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:23:45,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:23:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:23:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:45,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:45,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:23:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:23:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:45,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:45,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 22:23:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:45,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:45,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:45,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:45,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:45,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:23:45,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825235529] [2020-09-24 22:23:45,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:23:45,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 22:23:45,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974589769] [2020-09-24 22:23:45,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:23:45,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:45,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:23:45,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:23:45,842 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 9 states. [2020-09-24 22:23:46,950 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:47,249 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:47,566 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:47,947 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:48,237 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:49,099 INFO L93 Difference]: Finished difference Result 627 states and 805 transitions. [2020-09-24 22:23:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:23:49,099 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-09-24 22:23:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:49,106 INFO L225 Difference]: With dead ends: 627 [2020-09-24 22:23:49,106 INFO L226 Difference]: Without dead ends: 422 [2020-09-24 22:23:49,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:23:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-09-24 22:23:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 321. [2020-09-24 22:23:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-24 22:23:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 367 transitions. [2020-09-24 22:23:49,168 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 367 transitions. Word has length 200 [2020-09-24 22:23:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:49,169 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 367 transitions. [2020-09-24 22:23:49,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:23:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 367 transitions. [2020-09-24 22:23:49,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 22:23:49,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:49,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:49,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:23:49,174 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:49,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:49,174 INFO L82 PathProgramCache]: Analyzing trace with hash 533662926, now seen corresponding path program 1 times [2020-09-24 22:23:49,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:49,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15268077] [2020-09-24 22:23:49,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:49,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:23:54,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:23:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 22:23:54,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 22:23:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:54,536 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:54,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 22:23:54,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:23:54,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:54,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:54,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:54,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:54,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:54,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:54,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:54,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:54,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:54,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:54,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:54,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:23:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:23:54,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:23:54,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:54,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:23:54,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:54,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:23:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 22:23:54,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:23:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:54,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:23:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:23:54,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:23:54,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:54,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:23:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:54,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:23:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:54,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:23:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:54,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:54,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:54,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:54,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 22:23:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:54,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:54,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:54,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:54,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:54,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:54,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:54,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:54,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:55,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:55,053 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 22:23:55,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15268077] [2020-09-24 22:23:55,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:55,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:23:55,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99493367] [2020-09-24 22:23:55,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:23:55,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:55,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:23:55,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:23:55,059 INFO L87 Difference]: Start difference. First operand 321 states and 367 transitions. Second operand 9 states. [2020-09-24 22:23:56,749 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:57,078 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:57,409 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:23:57,734 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:58,060 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:58,341 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:59,008 INFO L93 Difference]: Finished difference Result 614 states and 759 transitions. [2020-09-24 22:23:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:23:59,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-24 22:23:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:59,016 INFO L225 Difference]: With dead ends: 614 [2020-09-24 22:23:59,017 INFO L226 Difference]: Without dead ends: 403 [2020-09-24 22:23:59,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:23:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-09-24 22:23:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 329. [2020-09-24 22:23:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-24 22:23:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 375 transitions. [2020-09-24 22:23:59,077 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 375 transitions. Word has length 185 [2020-09-24 22:23:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:59,077 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 375 transitions. [2020-09-24 22:23:59,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:23:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 375 transitions. [2020-09-24 22:23:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 22:23:59,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:59,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:59,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:23:59,081 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:59,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:59,081 INFO L82 PathProgramCache]: Analyzing trace with hash -680229167, now seen corresponding path program 1 times [2020-09-24 22:23:59,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:59,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246637941] [2020-09-24 22:23:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:59,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:00,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:02,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:02,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:24:02,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:02,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3526 [2020-09-24 22:24:02,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:24:02,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 22:24:02,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-24 22:24:02,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:02,966 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:02,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:03,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 22:24:03,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:24:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:03,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:03,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:03,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:03,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:03,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:03,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:03,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:03,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:03,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:03,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:24:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:03,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:24:03,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 22:24:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:24:03,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:03,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:03,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:03,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:03,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:03,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:03,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:03,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:24:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:03,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:03,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 22:24:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:03,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:03,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:03,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:03,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:03,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:03,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:03,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246637941] [2020-09-24 22:24:03,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:03,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:24:03,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461238731] [2020-09-24 22:24:03,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:03,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:03,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:03,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:03,430 INFO L87 Difference]: Start difference. First operand 329 states and 375 transitions. Second operand 9 states. [2020-09-24 22:24:03,936 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:04,774 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:05,139 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:24:05,466 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:05,804 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:06,105 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:06,621 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:06,940 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:07,349 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:08,827 INFO L93 Difference]: Finished difference Result 870 states and 1121 transitions. [2020-09-24 22:24:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:24:08,828 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-24 22:24:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:08,833 INFO L225 Difference]: With dead ends: 870 [2020-09-24 22:24:08,834 INFO L226 Difference]: Without dead ends: 606 [2020-09-24 22:24:08,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:24:08,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-24 22:24:08,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 501. [2020-09-24 22:24:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-24 22:24:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 577 transitions. [2020-09-24 22:24:08,903 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 577 transitions. Word has length 185 [2020-09-24 22:24:08,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:08,904 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 577 transitions. [2020-09-24 22:24:08,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:24:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 577 transitions. [2020-09-24 22:24:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-24 22:24:08,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:08,908 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:08,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:24:08,909 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1841610354, now seen corresponding path program 1 times [2020-09-24 22:24:08,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:08,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280131652] [2020-09-24 22:24:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:09,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:09,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:09,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:09,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:09,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking...