/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:22:23,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:22:23,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:22:23,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:22:23,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:22:23,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:22:23,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:22:23,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:22:23,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:22:23,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:22:23,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:22:23,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:22:23,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:22:23,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:22:23,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:22:23,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:22:23,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:22:23,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:22:23,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:22:23,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:22:23,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:22:23,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:22:23,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:22:23,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:22:23,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:22:23,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:22:23,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:22:23,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:22:23,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:22:23,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:22:23,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:22:23,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:22:23,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:22:23,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:22:23,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:22:23,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:22:23,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:22:23,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:22:23,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:22:23,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:22:23,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:22:23,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:22:23,309 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:22:23,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:22:23,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:22:23,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:22:23,311 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:22:23,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:22:23,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:22:23,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:22:23,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:22:23,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:22:23,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:22:23,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:22:23,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:22:23,313 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:22:23,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:22:23,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:22:23,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:22:23,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:22:23,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:22:23,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:22:23,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:22:23,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:22:23,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:22:23,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:22:23,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:22:23,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:22:23,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:22:23,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:22:23,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:22:23,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:22:23,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:22:23,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:22:23,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:22:23,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:22:23,801 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:22:23,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-09-25 03:22:23,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d81177927/08d9862fcae2419785210b1adcc3af33/FLAG3a8be8bdd [2020-09-25 03:22:24,585 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:22:24,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-09-25 03:22:24,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d81177927/08d9862fcae2419785210b1adcc3af33/FLAG3a8be8bdd [2020-09-25 03:22:24,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d81177927/08d9862fcae2419785210b1adcc3af33 [2020-09-25 03:22:24,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:22:24,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:22:24,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:22:24,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:22:24,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:22:24,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:22:24" (1/1) ... [2020-09-25 03:22:24,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8f1a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:24, skipping insertion in model container [2020-09-25 03:22:24,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:22:24" (1/1) ... [2020-09-25 03:22:24,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:22:24,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:22:25,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:22:25,417 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:22:25,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:22:25,644 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:22:25,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25 WrapperNode [2020-09-25 03:22:25,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:22:25,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:22:25,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:22:25,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:22:25,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... [2020-09-25 03:22:25,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:22:25,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:22:25,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:22:25,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:22:25,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:22:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:22:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:22:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 03:22:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:22:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 03:22:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:22:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:22:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 03:22:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:22:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:22:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:22:27,503 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:22:27,504 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:22:27,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:22:27 BoogieIcfgContainer [2020-09-25 03:22:27,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:22:27,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:22:27,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:22:27,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:22:27,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:22:24" (1/3) ... [2020-09-25 03:22:27,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4d37e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:22:27, skipping insertion in model container [2020-09-25 03:22:27,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:22:25" (2/3) ... [2020-09-25 03:22:27,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4d37e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:22:27, skipping insertion in model container [2020-09-25 03:22:27,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:22:27" (3/3) ... [2020-09-25 03:22:27,523 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-09-25 03:22:27,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:22:27,547 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:22:27,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:22:27,607 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:22:27,608 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:22:27,608 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:22:27,608 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:22:27,608 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:22:27,609 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:22:27,609 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:22:27,609 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:22:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 03:22:27,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 03:22:27,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:22:27,656 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] [2020-09-25 03:22:27,657 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:22:27,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:22:27,666 INFO L82 PathProgramCache]: Analyzing trace with hash 381272735, now seen corresponding path program 1 times [2020-09-25 03:22:27,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:22:27,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294779453] [2020-09-25 03:22:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:22:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:28,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:28,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:28,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:22:28,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:22:28,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-09-25 03:22:28,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:28,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:22:28,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:22:28,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:22:28,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:22:28,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:22:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:28,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:28,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 03:22:28,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:22:28,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:22:28,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:28,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:22:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:22:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:22:28,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:22:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:22:28,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294779453] [2020-09-25 03:22:28,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:22:28,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:22:28,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050994792] [2020-09-25 03:22:28,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:22:28,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:22:28,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:22:28,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:22:28,826 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 03:22:30,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:22:30,914 INFO L93 Difference]: Finished difference Result 1104 states and 1521 transitions. [2020-09-25 03:22:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:22:30,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-09-25 03:22:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:22:30,942 INFO L225 Difference]: With dead ends: 1104 [2020-09-25 03:22:30,942 INFO L226 Difference]: Without dead ends: 578 [2020-09-25 03:22:30,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:22:30,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-25 03:22:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 544. [2020-09-25 03:22:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-25 03:22:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 655 transitions. [2020-09-25 03:22:31,058 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 655 transitions. Word has length 45 [2020-09-25 03:22:31,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:22:31,059 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 655 transitions. [2020-09-25 03:22:31,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:22:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 655 transitions. [2020-09-25 03:22:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-25 03:22:31,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:22:31,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:22:31,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:22:31,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:22:31,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:22:31,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2073113520, now seen corresponding path program 1 times [2020-09-25 03:22:31,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:22:31,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578226105] [2020-09-25 03:22:31,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:22:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:31,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:31,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:31,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:31,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:35,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:35,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 03:22:35,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:22:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4669 [2020-09-25 03:22:35,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:22:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:22:35,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 03:22:35,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:22:35,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:22:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:35,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:35,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 03:22:35,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:22:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:22:35,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:22:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:22:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:22:35,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:22:36,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 03:22:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:36,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:36,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:36,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:36,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 03:22:36,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:22:36,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 03:22:36,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:36,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:22:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:22:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:22:36,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 03:22:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:22:36,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578226105] [2020-09-25 03:22:36,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:22:36,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:22:36,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358384688] [2020-09-25 03:22:36,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:22:36,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:22:36,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:22:36,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:22:36,654 INFO L87 Difference]: Start difference. First operand 544 states and 655 transitions. Second operand 9 states. [2020-09-25 03:22:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:22:39,665 INFO L93 Difference]: Finished difference Result 1290 states and 1601 transitions. [2020-09-25 03:22:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:22:39,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 124 [2020-09-25 03:22:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:22:39,673 INFO L225 Difference]: With dead ends: 1290 [2020-09-25 03:22:39,674 INFO L226 Difference]: Without dead ends: 761 [2020-09-25 03:22:39,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:22:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-09-25 03:22:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 697. [2020-09-25 03:22:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-09-25 03:22:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 863 transitions. [2020-09-25 03:22:39,713 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 863 transitions. Word has length 124 [2020-09-25 03:22:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:22:39,714 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 863 transitions. [2020-09-25 03:22:39,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:22:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 863 transitions. [2020-09-25 03:22:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-25 03:22:39,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:22:39,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:22:39,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:22:39,719 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:22:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:22:39,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1595126062, now seen corresponding path program 1 times [2020-09-25 03:22:39,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:22:39,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569348633] [2020-09-25 03:22:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:22:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:39,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:39,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:40,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:41,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:42,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:44,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:44,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 03:22:44,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:22:44,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4874 [2020-09-25 03:22:44,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:22:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:22:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 03:22:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:22:44,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:22:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:44,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:44,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 03:22:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:22:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:22:44,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:22:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:22:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:22:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:22:44,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 03:22:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:44,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:44,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:44,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:22:44,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:22:44,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 03:22:44,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:22:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:22:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 03:22:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:22:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:22:45,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569348633] [2020-09-25 03:22:45,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:22:45,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:22:45,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095554276] [2020-09-25 03:22:45,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:22:45,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:22:45,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:22:45,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:22:45,071 INFO L87 Difference]: Start difference. First operand 697 states and 863 transitions. Second operand 8 states. [2020-09-25 03:22:48,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:22:48,715 INFO L93 Difference]: Finished difference Result 2018 states and 2744 transitions. [2020-09-25 03:22:48,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:22:48,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 134 [2020-09-25 03:22:48,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:22:48,743 INFO L225 Difference]: With dead ends: 2018 [2020-09-25 03:22:48,743 INFO L226 Difference]: Without dead ends: 1486 [2020-09-25 03:22:48,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:22:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2020-09-25 03:22:48,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1211. [2020-09-25 03:22:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-09-25 03:22:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1592 transitions. [2020-09-25 03:22:48,860 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1592 transitions. Word has length 134 [2020-09-25 03:22:48,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:22:48,863 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1592 transitions. [2020-09-25 03:22:48,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:22:48,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1592 transitions. [2020-09-25 03:22:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 03:22:48,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:22:48,881 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, 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, 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] [2020-09-25 03:22:48,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:22:48,888 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:22:48,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:22:48,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1321374614, now seen corresponding path program 1 times [2020-09-25 03:22:48,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:22:48,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612226229] [2020-09-25 03:22:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:22:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:49,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:49,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:49,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:50,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:51,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:51,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:52,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:53,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:53,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 03:22:53,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:22:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 03:22:53,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:22:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:22:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-09-25 03:22:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:22:54,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:22:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:54,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:54,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 03:22:54,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:22:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:22:54,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:22:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:22:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:22:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:22:54,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 03:22:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:54,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 03:22:54,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:22:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 03:22:54,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:22:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:22:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 03:22:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:22:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:22:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:54,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:54,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:54,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:22:54,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 03:22:54,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:22:54,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 03:22:54,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:22:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:22:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:22:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:22:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:22:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-09-25 03:22:55,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612226229] [2020-09-25 03:22:55,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:22:55,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:22:55,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492305660] [2020-09-25 03:22:55,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:22:55,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:22:55,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:22:55,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:22:55,064 INFO L87 Difference]: Start difference. First operand 1211 states and 1592 transitions. Second operand 12 states. [2020-09-25 03:22:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:22:57,380 INFO L93 Difference]: Finished difference Result 2639 states and 3599 transitions. [2020-09-25 03:22:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:22:57,382 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 207 [2020-09-25 03:22:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:22:57,400 INFO L225 Difference]: With dead ends: 2639 [2020-09-25 03:22:57,401 INFO L226 Difference]: Without dead ends: 1515 [2020-09-25 03:22:57,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=212, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:22:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-09-25 03:22:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1499. [2020-09-25 03:22:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2020-09-25 03:22:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1906 transitions. [2020-09-25 03:22:57,465 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1906 transitions. Word has length 207 [2020-09-25 03:22:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:22:57,465 INFO L479 AbstractCegarLoop]: Abstraction has 1499 states and 1906 transitions. [2020-09-25 03:22:57,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:22:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1906 transitions. [2020-09-25 03:22:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-25 03:22:57,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:22:57,471 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, 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, 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] [2020-09-25 03:22:57,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:22:57,472 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:22:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:22:57,473 INFO L82 PathProgramCache]: Analyzing trace with hash -708837044, now seen corresponding path program 1 times [2020-09-25 03:22:57,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:22:57,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114610734] [2020-09-25 03:22:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:22:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:22:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:58,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:22:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:00,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:00,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:02,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:02,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:23:02,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-25 03:23:02,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:23:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 03:23:02,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:23:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:23:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 03:23:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-09-25 03:23:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:23:02,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:23:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:23:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:23:02,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 03:23:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:23:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:23:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:23:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:23:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:23:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:23:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:23:02,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 03:23:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:23:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:02,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:03,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:23:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 03:23:03,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:23:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-25 03:23:03,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:23:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:23:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:23:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 03:23:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:23:03,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:23:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:23:03,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:03,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:03,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:23:03,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:23:03,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:23:03,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-09-25 03:23:03,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:23:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:23:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:23:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 03:23:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:23:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-09-25 03:23:04,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114610734] [2020-09-25 03:23:04,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:23:04,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:23:04,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149838334] [2020-09-25 03:23:04,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:23:04,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:23:04,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:23:04,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:23:04,221 INFO L87 Difference]: Start difference. First operand 1499 states and 1906 transitions. Second operand 10 states. [2020-09-25 03:23:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:23:10,642 INFO L93 Difference]: Finished difference Result 5668 states and 7956 transitions. [2020-09-25 03:23:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 03:23:10,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 233 [2020-09-25 03:23:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:23:10,677 INFO L225 Difference]: With dead ends: 5668 [2020-09-25 03:23:10,678 INFO L226 Difference]: Without dead ends: 4334 [2020-09-25 03:23:10,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=286, Invalid=706, Unknown=0, NotChecked=0, Total=992 [2020-09-25 03:23:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2020-09-25 03:23:10,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 3239. [2020-09-25 03:23:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3239 states. [2020-09-25 03:23:10,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4048 transitions. [2020-09-25 03:23:10,850 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4048 transitions. Word has length 233 [2020-09-25 03:23:10,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:23:10,850 INFO L479 AbstractCegarLoop]: Abstraction has 3239 states and 4048 transitions. [2020-09-25 03:23:10,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:23:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4048 transitions. [2020-09-25 03:23:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-09-25 03:23:10,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:23:10,859 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, 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, 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] [2020-09-25 03:23:10,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:23:10,860 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:23:10,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:23:10,860 INFO L82 PathProgramCache]: Analyzing trace with hash -580809659, now seen corresponding path program 1 times [2020-09-25 03:23:10,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:23:10,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90508291] [2020-09-25 03:23:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:23:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:23:10,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:11,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:11,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:23:12,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking...