/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:11:11,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:11:11,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:11:11,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:11:11,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:11:11,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:11:11,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:11:11,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:11:11,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:11:11,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:11:11,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:11:11,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:11:11,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:11:11,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:11:11,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:11:11,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:11:11,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:11:11,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:11:11,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:11:11,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:11:11,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:11:11,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:11:11,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:11:11,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:11:11,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:11:11,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:11:11,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:11:11,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:11:11,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:11:11,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:11:11,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:11:11,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:11:11,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:11:11,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:11:11,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:11:11,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:11:11,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:11:11,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:11:11,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:11:11,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:11:11,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:11:11,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:11:11,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:11:11,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:11:11,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:11:11,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:11:11,314 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:11:11,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:11:11,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:11:11,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:11:11,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:11:11,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:11:11,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:11:11,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:11:11,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:11:11,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:11:11,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:11:11,318 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:11:11,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:11:11,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:11:11,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:11:11,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:11:11,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:11:11,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:11:11,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:11:11,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:11:11,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:11:11,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:11:11,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:11:11,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:11:11,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:11:11,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:11:11,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:11:11,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:11:11,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:11:11,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:11:11,776 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:11:11,777 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-24 19:11:11,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8d591df6/d6ad03af7971467b8e907c74a827559f/FLAG4860ce8a3 [2020-09-24 19:11:12,491 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:11:12,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-24 19:11:12,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8d591df6/d6ad03af7971467b8e907c74a827559f/FLAG4860ce8a3 [2020-09-24 19:11:12,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8d591df6/d6ad03af7971467b8e907c74a827559f [2020-09-24 19:11:12,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:11:12,782 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:11:12,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:11:12,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:11:12,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:11:12,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:11:12" (1/1) ... [2020-09-24 19:11:12,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c56d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:12, skipping insertion in model container [2020-09-24 19:11:12,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:11:12" (1/1) ... [2020-09-24 19:11:12,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:11:12,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:11:13,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:11:13,273 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:11:13,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:11:13,483 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:11:13,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13 WrapperNode [2020-09-24 19:11:13,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:11:13,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:11:13,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:11:13,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:11:13,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... [2020-09-24 19:11:13,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:11:13,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:11:13,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:11:13,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:11:13,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:11:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:11:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:11:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:11:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:11:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:11:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:11:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:11:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:11:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:11:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:11:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:11:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:11:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:11:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:11:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:11:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:11:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:11:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:11:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:11:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:11:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:11:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:11:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:11:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:11:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:11:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:11:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:11:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:11:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:11:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:11:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:11:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:11:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:11:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:11:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:11:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:11:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:11:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:11:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:11:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:11:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:11:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:11:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:11:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:11:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:11:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:11:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:11:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:11:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:11:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:11:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:11:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:11:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:11:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:11:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:11:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:11:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:11:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:11:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:11:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:11:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:11:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:11:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:11:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:11:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:11:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:11:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:11:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:11:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:11:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:11:14,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:11:14,878 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:11:14,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:11:14 BoogieIcfgContainer [2020-09-24 19:11:14,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:11:14,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:11:14,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:11:14,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:11:14,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:11:12" (1/3) ... [2020-09-24 19:11:14,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eacdfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:11:14, skipping insertion in model container [2020-09-24 19:11:14,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:11:13" (2/3) ... [2020-09-24 19:11:14,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eacdfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:11:14, skipping insertion in model container [2020-09-24 19:11:14,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:11:14" (3/3) ... [2020-09-24 19:11:14,895 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-24 19:11:14,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:11:14,918 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:11:14,942 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:11:14,976 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:11:14,977 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:11:14,977 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:11:14,977 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:11:14,977 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:11:14,977 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:11:14,978 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:11:14,978 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:11:15,007 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-24 19:11:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:11:15,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:15,026 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 19:11:15,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:15,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:15,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-24 19:11:15,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:15,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165829671] [2020-09-24 19:11:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:16,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:16,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:16,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:11:16,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:11:16,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-09-24 19:11:16,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:11:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:16,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:11:16,845 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:16,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:16,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:17,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 19:11:17,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:17,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:11:17,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:17,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:17,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:17,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:17,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:17,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:17,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:17,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:17,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:17,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:11:17,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:17,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:17,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:17,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:11:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:17,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:17,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:17,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:11:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:17,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:17,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:17,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:17,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:17,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:11:17,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165829671] [2020-09-24 19:11:17,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:11:17,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:11:17,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520870776] [2020-09-24 19:11:17,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:11:17,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:17,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:11:17,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:11:17,266 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 3 states. [2020-09-24 19:11:18,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:18,589 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2020-09-24 19:11:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:11:18,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:11:18,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:18,611 INFO L225 Difference]: With dead ends: 419 [2020-09-24 19:11:18,612 INFO L226 Difference]: Without dead ends: 266 [2020-09-24 19:11:18,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:11:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-24 19:11:18,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-24 19:11:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-24 19:11:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions. [2020-09-24 19:11:18,754 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 142 [2020-09-24 19:11:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:18,756 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 245 transitions. [2020-09-24 19:11:18,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:11:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions. [2020-09-24 19:11:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:11:18,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:18,769 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] [2020-09-24 19:11:18,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:11:18,771 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:18,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:18,772 INFO L82 PathProgramCache]: Analyzing trace with hash -469194886, now seen corresponding path program 1 times [2020-09-24 19:11:18,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:18,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910640186] [2020-09-24 19:11:18,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:18,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:19,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:19,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:19,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:11:19,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:11:19,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-24 19:11:19,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:11:19,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:11:19,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:20,184 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:20,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:20,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:11:20,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:20,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:20,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:20,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:20,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:20,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:20,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:20,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:20,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:20,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:20,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:20,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:11:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:20,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:20,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:11:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:20,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:20,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:20,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:20,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:20,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:11:20,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910640186] [2020-09-24 19:11:20,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:11:20,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:11:20,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52101973] [2020-09-24 19:11:20,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:11:20,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:20,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:11:20,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:11:20,474 INFO L87 Difference]: Start difference. First operand 227 states and 245 transitions. Second operand 4 states. [2020-09-24 19:11:21,064 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:21,824 INFO L93 Difference]: Finished difference Result 336 states and 376 transitions. [2020-09-24 19:11:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:11:21,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:11:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:21,830 INFO L225 Difference]: With dead ends: 336 [2020-09-24 19:11:21,830 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 19:11:21,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:11:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 19:11:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217. [2020-09-24 19:11:21,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 19:11:21,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 232 transitions. [2020-09-24 19:11:21,900 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 232 transitions. Word has length 143 [2020-09-24 19:11:21,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:21,901 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 232 transitions. [2020-09-24 19:11:21,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:11:21,901 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 232 transitions. [2020-09-24 19:11:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 19:11:21,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:21,903 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] [2020-09-24 19:11:21,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:11:21,904 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:21,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:21,904 INFO L82 PathProgramCache]: Analyzing trace with hash 162245926, now seen corresponding path program 1 times [2020-09-24 19:11:21,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:21,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500612280] [2020-09-24 19:11:21,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:22,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:22,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:11:23,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:11:23,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-09-24 19:11:23,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 19:11:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 19:11:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:23,288 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:23,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-24 19:11:23,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:11:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:23,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:23,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:23,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:23,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:23,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:23,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:23,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:23,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:11:23,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:23,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:23,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:11:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:23,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:23,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:23,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:11:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:23,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:23,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:23,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:23,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:23,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:23,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:11:23,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500612280] [2020-09-24 19:11:23,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:11:23,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:11:23,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918432856] [2020-09-24 19:11:23,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:11:23,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:23,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:11:23,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:11:23,713 INFO L87 Difference]: Start difference. First operand 217 states and 232 transitions. Second operand 4 states. [2020-09-24 19:11:24,227 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:11:24,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:24,900 INFO L93 Difference]: Finished difference Result 356 states and 401 transitions. [2020-09-24 19:11:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:11:24,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 19:11:24,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:24,904 INFO L225 Difference]: With dead ends: 356 [2020-09-24 19:11:24,904 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 19:11:24,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:11:24,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 19:11:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217. [2020-09-24 19:11:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 19:11:24,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 231 transitions. [2020-09-24 19:11:24,934 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 231 transitions. Word has length 152 [2020-09-24 19:11:24,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:24,934 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 231 transitions. [2020-09-24 19:11:24,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:11:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 231 transitions. [2020-09-24 19:11:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:11:24,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:24,937 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] [2020-09-24 19:11:24,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:11:24,937 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:24,938 INFO L82 PathProgramCache]: Analyzing trace with hash 705113863, now seen corresponding path program 1 times [2020-09-24 19:11:24,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:24,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486350855] [2020-09-24 19:11:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:25,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:25,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:25,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 19:11:25,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:11:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:11:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:11:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:11:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,268 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:26,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:26,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 19:11:26,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:26,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:26,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:26,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:26,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:26,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:26,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:26,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:26,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:11:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:11:26,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:11:26,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:11:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:11:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:11:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:26,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:26,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:26,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:11:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:26,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:26,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:11:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:26,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:26,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:26,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:26,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:26,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:26,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:11:26,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486350855] [2020-09-24 19:11:26,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:11:26,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:11:26,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747526929] [2020-09-24 19:11:26,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:11:26,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:26,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:11:26,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:11:26,553 INFO L87 Difference]: Start difference. First operand 217 states and 231 transitions. Second operand 7 states. [2020-09-24 19:11:26,997 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:11:28,413 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:28,881 INFO L93 Difference]: Finished difference Result 478 states and 544 transitions. [2020-09-24 19:11:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:11:28,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-24 19:11:28,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:28,890 INFO L225 Difference]: With dead ends: 478 [2020-09-24 19:11:28,890 INFO L226 Difference]: Without dead ends: 371 [2020-09-24 19:11:28,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:11:28,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-24 19:11:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-24 19:11:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-24 19:11:28,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 336 transitions. [2020-09-24 19:11:28,986 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 336 transitions. Word has length 160 [2020-09-24 19:11:28,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:28,987 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 336 transitions. [2020-09-24 19:11:28,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:11:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 336 transitions. [2020-09-24 19:11:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-24 19:11:28,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:28,989 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] [2020-09-24 19:11:28,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:11:28,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:28,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:28,990 INFO L82 PathProgramCache]: Analyzing trace with hash 392099313, now seen corresponding path program 1 times [2020-09-24 19:11:28,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:28,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702659086] [2020-09-24 19:11:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:29,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:29,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 19:11:30,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:11:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-24 19:11:30,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:11:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:11:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 19:11:30,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:30,461 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:30,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:30,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-24 19:11:30,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:30,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:11:30,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:30,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:30,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:30,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:30,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:30,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:30,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:30,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:11:30,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:30,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:30,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:30,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:30,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:11:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:11:30,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:11:30,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 19:11:30,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:11:30,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:11:30,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:30,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:30,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:11:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:11:30,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:30,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:11:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:30,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:30,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:30,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 19:11:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:30,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:30,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:30,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:30,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:30,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:11:30,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:30,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:30,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:11:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:31,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:31,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:31,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:31,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:31,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:11:31,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702659086] [2020-09-24 19:11:31,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:11:31,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:11:31,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003102919] [2020-09-24 19:11:31,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:11:31,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:31,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:11:31,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:11:31,087 INFO L87 Difference]: Start difference. First operand 312 states and 336 transitions. Second operand 9 states. [2020-09-24 19:11:31,729 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:11:32,935 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:11:33,244 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:11:33,560 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:11:33,893 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:11:34,184 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:11:34,783 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:11:35,080 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:11:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:35,981 INFO L93 Difference]: Finished difference Result 705 states and 822 transitions. [2020-09-24 19:11:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:11:35,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-24 19:11:35,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:35,987 INFO L225 Difference]: With dead ends: 705 [2020-09-24 19:11:35,987 INFO L226 Difference]: Without dead ends: 503 [2020-09-24 19:11:35,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:11:35,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-24 19:11:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 461. [2020-09-24 19:11:36,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-09-24 19:11:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 517 transitions. [2020-09-24 19:11:36,081 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 517 transitions. Word has length 184 [2020-09-24 19:11:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:36,082 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 517 transitions. [2020-09-24 19:11:36,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:11:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 517 transitions. [2020-09-24 19:11:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 19:11:36,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:36,086 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 19:11:36,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:11:36,087 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:36,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:36,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1483453846, now seen corresponding path program 1 times [2020-09-24 19:11:36,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:36,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195508817] [2020-09-24 19:11:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:36,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:11:37,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-09-24 19:11:37,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:11:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 19:11:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:11:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:37,417 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:37,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:37,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:11:37,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:37,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:37,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:37,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:37,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:37,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:37,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:37,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:11:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 19:11:37,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 19:11:37,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:11:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:11:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:11:37,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:11:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 19:11:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:11:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:11:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:11:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:11:37,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:11:37,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:11:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:11:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:11:37,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:37,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:37,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:11:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:11:37,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:37,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:11:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 19:11:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:11:37,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:11:37,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:11:37,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:37,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:37,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 19:11:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:11:37,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:37,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:11:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:11:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:11:37,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:11:37,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:11:37,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:37,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:37,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:37,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:37,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:37,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:37,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:37,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 19:11:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:38,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:38,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:38,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:38,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:38,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 19:11:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:38,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:38,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:38,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:38,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:38,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:38,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:11:38,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195508817] [2020-09-24 19:11:38,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:11:38,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:11:38,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868230653] [2020-09-24 19:11:38,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:11:38,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:38,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:11:38,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:11:38,073 INFO L87 Difference]: Start difference. First operand 461 states and 517 transitions. Second operand 11 states. [2020-09-24 19:11:39,363 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:39,665 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:11:39,974 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:11:40,265 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:11:40,609 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:11:40,915 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:11:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:41,783 INFO L93 Difference]: Finished difference Result 933 states and 1108 transitions. [2020-09-24 19:11:41,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:11:41,787 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2020-09-24 19:11:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:41,792 INFO L225 Difference]: With dead ends: 933 [2020-09-24 19:11:41,795 INFO L226 Difference]: Without dead ends: 582 [2020-09-24 19:11:41,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:11:41,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-09-24 19:11:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 477. [2020-09-24 19:11:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-09-24 19:11:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 534 transitions. [2020-09-24 19:11:41,865 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 534 transitions. Word has length 232 [2020-09-24 19:11:41,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:41,865 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 534 transitions. [2020-09-24 19:11:41,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:11:41,866 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 534 transitions. [2020-09-24 19:11:41,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 19:11:41,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:41,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 19:11:41,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:11:41,868 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:41,869 INFO L82 PathProgramCache]: Analyzing trace with hash 440058570, now seen corresponding path program 1 times [2020-09-24 19:11:41,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:41,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187596673] [2020-09-24 19:11:41,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:41,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:42,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:42,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:11:42,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-09-24 19:11:42,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 19:11:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:11:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:42,957 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:42,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:43,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 19:11:43,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:43,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:43,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:43,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:43,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:43,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:43,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:43,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:43,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:11:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 19:11:43,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 19:11:43,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:11:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:11:43,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:11:43,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 19:11:43,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:11:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:11:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:11:43,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:11:43,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:11:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:11:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:11:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:11:43,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:11:43,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:11:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:43,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:11:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:11:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:11:43,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:43,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:11:43,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 19:11:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:11:43,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:11:43,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:11:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:43,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:43,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 19:11:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:11:43,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:43,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:11:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:11:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:11:43,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:11:43,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:11:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:43,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:43,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 19:11:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:43,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:43,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:43,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 19:11:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:43,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:43,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:11:43,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187596673] [2020-09-24 19:11:43,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:11:43,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 19:11:43,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363303351] [2020-09-24 19:11:43,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:11:43,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:43,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:11:43,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:11:43,543 INFO L87 Difference]: Start difference. First operand 477 states and 534 transitions. Second operand 10 states. [2020-09-24 19:11:44,686 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:44,984 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:11:45,288 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:45,601 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:11:45,890 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:46,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:46,885 INFO L93 Difference]: Finished difference Result 918 states and 1099 transitions. [2020-09-24 19:11:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:11:46,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2020-09-24 19:11:46,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:46,895 INFO L225 Difference]: With dead ends: 918 [2020-09-24 19:11:46,895 INFO L226 Difference]: Without dead ends: 551 [2020-09-24 19:11:46,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:11:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-09-24 19:11:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 446. [2020-09-24 19:11:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-24 19:11:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 498 transitions. [2020-09-24 19:11:47,004 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 498 transitions. Word has length 232 [2020-09-24 19:11:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:47,004 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 498 transitions. [2020-09-24 19:11:47,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:11:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 498 transitions. [2020-09-24 19:11:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 19:11:47,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:47,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 19:11:47,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:11:47,007 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:47,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1546422777, now seen corresponding path program 1 times [2020-09-24 19:11:47,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:47,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987460687] [2020-09-24 19:11:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:47,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:47,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:11:48,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:11:48,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:11:48,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:11:48,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:11:48,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 19:11:48,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,363 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:48,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:48,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 19:11:48,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:11:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:48,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:48,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:48,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:48,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:11:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:48,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:48,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:48,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:11:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:11:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 19:11:48,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 19:11:48,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:11:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:11:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 19:11:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:11:48,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 19:11:48,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:11:48,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 19:11:48,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:11:48,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:11:48,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:11:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:11:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:11:48,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:11:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:11:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:11:48,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:48,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:11:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 19:11:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:11:48,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:11:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:11:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:48,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:48,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 19:11:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:11:48,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:48,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:11:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:11:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:48,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:48,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:48,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:11:48,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:48,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:11:48,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:48,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:11:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:48,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:49,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:49,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:49,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:49,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:49,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 19:11:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:49,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:49,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:49,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:49,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:49,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:49,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:49,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:49,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:49,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 19:11:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:49,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:49,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:49,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 19:11:49,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987460687] [2020-09-24 19:11:49,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:11:49,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:11:49,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100676715] [2020-09-24 19:11:49,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:11:49,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:49,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:11:49,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:11:49,071 INFO L87 Difference]: Start difference. First operand 446 states and 498 transitions. Second operand 9 states. [2020-09-24 19:11:49,559 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:11:50,537 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-24 19:11:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:11:52,354 INFO L93 Difference]: Finished difference Result 894 states and 1040 transitions. [2020-09-24 19:11:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:11:52,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 232 [2020-09-24 19:11:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:11:52,359 INFO L225 Difference]: With dead ends: 894 [2020-09-24 19:11:52,359 INFO L226 Difference]: Without dead ends: 558 [2020-09-24 19:11:52,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:11:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-24 19:11:52,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 509. [2020-09-24 19:11:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2020-09-24 19:11:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 561 transitions. [2020-09-24 19:11:52,439 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 561 transitions. Word has length 232 [2020-09-24 19:11:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:11:52,440 INFO L479 AbstractCegarLoop]: Abstraction has 509 states and 561 transitions. [2020-09-24 19:11:52,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:11:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 561 transitions. [2020-09-24 19:11:52,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-24 19:11:52,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:11:52,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 19:11:52,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:11:52,445 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:11:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:11:52,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1204398017, now seen corresponding path program 1 times [2020-09-24 19:11:52,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:11:52,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764919416] [2020-09-24 19:11:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:11:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:52,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 19:11:53,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:11:53,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:11:53,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:11:53,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 19:11:53,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 19:11:53,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:53,821 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:11:53,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:11:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:53,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:11:53,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 19:11:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:53,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:11:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:53,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:53,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:53,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:53,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:53,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:11:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:53,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:53,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:53,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:53,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:53,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:11:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:53,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:11:53,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:11:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:53,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:53,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:53,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:11:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:53,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:53,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:53,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:11:53,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:53,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:53,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:11:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 19:11:54,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:11:54,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:11:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:11:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:11:54,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:11:54,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:11:54,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:11:54,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:11:54,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:11:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:11:54,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:54,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:11:54,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:11:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:11:54,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:11:54,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:11:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 19:11:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:11:54,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:11:54,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:11:54,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:54,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:54,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:54,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 19:11:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:11:54,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:11:54,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:11:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:11:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:11:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:11:54,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:11:54,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:11:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 19:11:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:11:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:11:54,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:11:54,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 19:11:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:54,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:11:54,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:11:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:11:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:11:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 19:11:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:11:54,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:11:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:11:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:11:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:11:54,340 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 19:11:54,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764919416] [2020-09-24 19:11:54,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:11:54,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 19:11:54,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287929511] [2020-09-24 19:11:54,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:11:54,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:11:54,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:11:54,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:11:54,342 INFO L87 Difference]: Start difference. First operand 509 states and 561 transitions. Second operand 14 states. [2020-09-24 19:11:54,907 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:11:56,010 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:11:57,031 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 19:11:57,605 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 19:11:57,933 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:11:58,487 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 19:11:58,771 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:11:59,342 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 19:11:59,636 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:11:59,960 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:00,299 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:12:00,611 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:01,814 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:02,130 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:12:02,486 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:03,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:03,262 INFO L93 Difference]: Finished difference Result 1217 states and 1468 transitions. [2020-09-24 19:12:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 19:12:03,263 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 237 [2020-09-24 19:12:03,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:03,269 INFO L225 Difference]: With dead ends: 1217 [2020-09-24 19:12:03,269 INFO L226 Difference]: Without dead ends: 899 [2020-09-24 19:12:03,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=443, Invalid=1117, Unknown=0, NotChecked=0, Total=1560 [2020-09-24 19:12:03,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-09-24 19:12:03,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 648. [2020-09-24 19:12:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-09-24 19:12:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 727 transitions. [2020-09-24 19:12:03,373 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 727 transitions. Word has length 237 [2020-09-24 19:12:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:03,373 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 727 transitions. [2020-09-24 19:12:03,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 19:12:03,373 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 727 transitions. [2020-09-24 19:12:03,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-24 19:12:03,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:03,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-09-24 19:12:03,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:12:03,381 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:03,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1574385309, now seen corresponding path program 2 times [2020-09-24 19:12:03,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:03,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366419223] [2020-09-24 19:12:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:12:03,452 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:12:03,452 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:12:03,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:12:03,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:12:03 BoogieIcfgContainer [2020-09-24 19:12:03,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:12:03,494 INFO L168 Benchmark]: Toolchain (without parser) took 50716.00 ms. Allocated memory was 140.0 MB in the beginning and 830.5 MB in the end (delta: 690.5 MB). Free memory was 102.0 MB in the beginning and 695.7 MB in the end (delta: -593.7 MB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:12:03,495 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 19:12:03,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.78 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 173.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:12:03,497 INFO L168 Benchmark]: Boogie Preprocessor took 140.26 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:12:03,497 INFO L168 Benchmark]: RCFGBuilder took 1259.97 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.8 MB in the beginning and 181.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:12:03,498 INFO L168 Benchmark]: TraceAbstraction took 48605.95 ms. Allocated memory was 237.5 MB in the beginning and 830.5 MB in the end (delta: 593.0 MB). Free memory was 181.8 MB in the beginning and 695.7 MB in the end (delta: -514.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:12:03,501 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.78 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 173.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.26 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1259.97 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.8 MB in the beginning and 181.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48605.95 ms. Allocated memory was 237.5 MB in the beginning and 830.5 MB in the end (delta: 593.0 MB). Free memory was 181.8 MB in the beginning and 695.7 MB in the end (delta: -514.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) [L567] CALL waterRise() [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 [L567] RET waterRise() [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND TRUE ! pumpRunning [L754] CALL, EXPR isHighWaterLevel() [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L852] CALL, EXPR isHighWaterSensorDry() [L695] int retValue_acc ; [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); [L852] RET, EXPR isHighWaterSensorDry() [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L754] RET, EXPR isHighWaterLevel() [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L758] CALL activatePump() [L777] pumpRunning = 1 [L758] RET activatePump() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L884] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L884] RET, EXPR isPumpRunning() [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) [L888] CALL __automaton_fail() [L869] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 606 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.4s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 30.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1994 SDtfs, 3643 SDslu, 3364 SDs, 0 SdLazy, 6204 SolverSat, 1055 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 366 GetRequests, 246 SyntacticMatches, 7 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=648occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 714 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 1998 NumberOfCodeBlocks, 1998 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1705 ConstructedInterpolants, 0 QuantifiedInterpolants, 770797 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 130/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...