/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 07:13:51,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 07:13:51,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 07:13:51,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 07:13:51,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 07:13:51,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 07:13:51,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 07:13:51,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 07:13:51,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 07:13:51,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 07:13:51,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 07:13:51,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 07:13:51,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 07:13:51,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 07:13:51,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 07:13:51,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 07:13:51,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 07:13:51,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 07:13:51,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 07:13:51,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 07:13:51,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 07:13:51,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 07:13:51,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 07:13:51,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 07:13:51,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 07:13:51,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 07:13:51,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 07:13:51,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 07:13:51,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 07:13:51,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 07:13:51,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 07:13:51,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 07:13:51,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 07:13:51,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 07:13:51,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 07:13:51,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 07:13:51,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 07:13:51,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 07:13:51,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 07:13:51,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 07:13:51,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 07:13:51,199 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 [2020-10-13 07:13:51,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 07:13:51,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 07:13:51,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 07:13:51,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 07:13:51,221 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 07:13:51,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 07:13:51,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 07:13:51,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 07:13:51,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 07:13:51,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 07:13:51,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 07:13:51,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 07:13:51,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 07:13:51,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 07:13:51,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 07:13:51,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 07:13:51,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 07:13:51,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 07:13:51,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 07:13:51,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 07:13:51,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 07:13:51,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:13:51,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 07:13:51,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 07:13:51,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 07:13:51,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 07:13:51,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 07:13:51,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 07:13:51,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 07:13:51,226 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 07:13:51,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 07:13:51,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 07:13:51,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 07:13:51,533 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 07:13:51,534 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 07:13:51,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label49.c [2020-10-13 07:13:51,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84641b650/471b99ce286643b38b9a2da4fe608451/FLAG6f385eb29 [2020-10-13 07:13:52,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 07:13:52,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label49.c [2020-10-13 07:13:52,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84641b650/471b99ce286643b38b9a2da4fe608451/FLAG6f385eb29 [2020-10-13 07:13:52,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84641b650/471b99ce286643b38b9a2da4fe608451 [2020-10-13 07:13:52,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 07:13:52,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 07:13:52,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 07:13:52,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 07:13:52,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 07:13:52,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:13:52" (1/1) ... [2020-10-13 07:13:52,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a5289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:52, skipping insertion in model container [2020-10-13 07:13:52,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:13:52" (1/1) ... [2020-10-13 07:13:52,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 07:13:53,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 07:13:55,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:13:55,595 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 07:13:56,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:13:57,006 INFO L208 MainTranslator]: Completed translation [2020-10-13 07:13:57,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57 WrapperNode [2020-10-13 07:13:57,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 07:13:57,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 07:13:57,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 07:13:57,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 07:13:57,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (1/1) ... [2020-10-13 07:13:57,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 07:13:57,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 07:13:57,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 07:13:57,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 07:13:57,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (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 [2020-10-13 07:13:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 07:13:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 07:13:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 07:13:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 07:13:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 07:13:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 07:13:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 07:13:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 07:13:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 07:13:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 07:13:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 07:13:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 07:13:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 07:13:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 07:13:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 07:13:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 07:13:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 07:13:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 07:13:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 07:14:04,400 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 07:14:04,401 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 07:14:04,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:04 BoogieIcfgContainer [2020-10-13 07:14:04,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 07:14:04,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 07:14:04,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 07:14:04,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 07:14:04,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:13:52" (1/3) ... [2020-10-13 07:14:04,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3bc6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:04, skipping insertion in model container [2020-10-13 07:14:04,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:57" (2/3) ... [2020-10-13 07:14:04,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3bc6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:04, skipping insertion in model container [2020-10-13 07:14:04,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:04" (3/3) ... [2020-10-13 07:14:04,427 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label49.c [2020-10-13 07:14:04,438 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 07:14:04,450 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 07:14:04,464 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 07:14:04,495 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 07:14:04,495 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 07:14:04,495 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 07:14:04,496 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 07:14:04,496 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 07:14:04,496 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 07:14:04,496 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 07:14:04,496 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 07:14:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-13 07:14:04,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2020-10-13 07:14:04,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:14:04,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:14:04,594 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:14:04,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:14:04,601 INFO L82 PathProgramCache]: Analyzing trace with hash 660290887, now seen corresponding path program 1 times [2020-10-13 07:14:04,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:14:04,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826546183] [2020-10-13 07:14:04,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:14:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:14:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:14:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:14:10,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:14:10,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-13 07:14:10,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:14:10,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5310 [2020-10-13 07:14:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:14:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 07:14:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:14:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 769 [2020-10-13 07:14:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:14:14,030 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-13 07:14:14,667 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 67 [2020-10-13 07:14:15,358 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 82 [2020-10-13 07:14:15,551 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-13 07:14:15,737 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-13 07:14:15,909 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-10-13 07:14:16,135 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-10-13 07:14:16,316 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-10-13 07:14:16,482 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-10-13 07:14:17,324 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:14:17,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:14:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:14:17,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:14:17,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:14:17,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:14:17,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:14:17,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 07:14:17,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:14:17,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:14:17,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:14:17,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:14:17,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:14:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:14:28,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826546183] [2020-10-13 07:14:28,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:14:28,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 07:14:28,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485737541] [2020-10-13 07:14:28,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 07:14:28,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:14:28,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 07:14:28,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2020-10-13 07:14:28,762 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 19 states. [2020-10-13 07:14:29,307 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 07:14:30,186 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 178 [2020-10-13 07:14:31,062 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 181 [2020-10-13 07:14:32,032 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 189 [2020-10-13 07:14:36,423 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 188 [2020-10-13 07:14:40,338 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 234 DAG size of output: 187 [2020-10-13 07:14:43,281 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 179 [2020-10-13 07:14:44,282 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 185 [2020-10-13 07:14:45,566 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 184 [2020-10-13 07:14:55,699 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 177 [2020-10-13 07:14:56,646 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 182 [2020-10-13 07:14:59,883 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 181 [2020-10-13 07:15:07,742 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 175 [2020-10-13 07:15:08,713 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 179 [2020-10-13 07:15:11,744 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 175 [2020-10-13 07:15:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:15:25,096 INFO L93 Difference]: Finished difference Result 3396 states and 6359 transitions. [2020-10-13 07:15:25,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 07:15:25,099 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1004 [2020-10-13 07:15:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:15:25,138 INFO L225 Difference]: With dead ends: 3396 [2020-10-13 07:15:25,138 INFO L226 Difference]: Without dead ends: 2019 [2020-10-13 07:15:25,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 07:15:25,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-10-13 07:15:25,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2019. [2020-10-13 07:15:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-13 07:15:25,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 3053 transitions. [2020-10-13 07:15:25,306 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 3053 transitions. Word has length 1004 [2020-10-13 07:15:25,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:15:25,309 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 3053 transitions. [2020-10-13 07:15:25,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 07:15:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 3053 transitions. [2020-10-13 07:15:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2020-10-13 07:15:25,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:15:25,350 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:15:25,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 07:15:25,351 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:15:25,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:15:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1168763034, now seen corresponding path program 1 times [2020-10-13 07:15:25,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:15:25,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266614974] [2020-10-13 07:15:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:15:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:26,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:26,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:30,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:15:30,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1092 [2020-10-13 07:15:30,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:15:30,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-13 07:15:30,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:15:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 07:15:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:15:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 07:15:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:15:31,313 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:15:31,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:15:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:31,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:15:31,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:15:31,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:15:31,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 07:15:31,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:15:31,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:15:31,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:15:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:15:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:15:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:15:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:31,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:15:31,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 07:15:31,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:15:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-13 07:15:31,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:15:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 07:15:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:15:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 07:15:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:15:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:15:33,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266614974] [2020-10-13 07:15:33,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:15:33,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 07:15:33,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607569139] [2020-10-13 07:15:33,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 07:15:33,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:15:33,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 07:15:33,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 07:15:33,054 INFO L87 Difference]: Start difference. First operand 2019 states and 3053 transitions. Second operand 7 states. [2020-10-13 07:15:33,225 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 07:15:34,401 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 07:15:54,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:15:54,908 INFO L93 Difference]: Finished difference Result 4508 states and 7547 transitions. [2020-10-13 07:15:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 07:15:54,909 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1074 [2020-10-13 07:15:54,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:15:54,934 INFO L225 Difference]: With dead ends: 4508 [2020-10-13 07:15:54,934 INFO L226 Difference]: Without dead ends: 3249 [2020-10-13 07:15:54,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 07:15:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3249 states. [2020-10-13 07:15:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3249 to 3149. [2020-10-13 07:15:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3149 states. [2020-10-13 07:15:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 4655 transitions. [2020-10-13 07:15:55,055 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 4655 transitions. Word has length 1074 [2020-10-13 07:15:55,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:15:55,056 INFO L479 AbstractCegarLoop]: Abstraction has 3149 states and 4655 transitions. [2020-10-13 07:15:55,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 07:15:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 4655 transitions. [2020-10-13 07:15:55,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2020-10-13 07:15:55,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:15:55,085 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:15:55,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 07:15:55,085 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:15:55,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:15:55,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1869722717, now seen corresponding path program 1 times [2020-10-13 07:15:55,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:15:55,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231193579] [2020-10-13 07:15:55,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:15:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:55,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:56,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:00,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:16:00,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1144 [2020-10-13 07:16:00,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:16:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-13 07:16:00,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:16:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 07:16:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:16:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-13 07:16:00,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:16:02,024 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-13 07:16:02,238 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-13 07:16:02,412 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:16:02,598 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:16:02,766 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2020-10-13 07:16:03,406 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:16:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:16:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:16:03,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:03,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:16:03,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:16:03,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:16:03,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 07:16:03,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:16:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:16:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:16:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:16:03,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:16:03,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:16:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:16:03,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:03,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:16:03,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:16:03,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:16:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-13 07:16:03,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:16:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:16:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:16:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:16:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 07:16:04,780 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2020-10-13 07:16:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:16:12,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231193579] [2020-10-13 07:16:12,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 07:16:12,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 07:16:12,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811331643] [2020-10-13 07:16:12,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 07:16:12,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:16:12,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 07:16:12,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-13 07:16:12,769 INFO L87 Difference]: Start difference. First operand 3149 states and 4655 transitions. Second operand 19 states. [2020-10-13 07:16:13,036 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 07:16:15,156 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 67 [2020-10-13 07:16:15,429 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2020-10-13 07:16:15,772 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2020-10-13 07:16:16,571 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 169 [2020-10-13 07:16:17,344 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 177 [2020-10-13 07:16:18,710 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 176 [2020-10-13 07:16:22,180 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 222 DAG size of output: 175 [2020-10-13 07:16:27,379 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-13 07:16:32,363 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 165 [2020-10-13 07:16:33,158 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 171 [2020-10-13 07:16:34,621 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 170 [2020-10-13 07:16:44,572 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 169 [2020-10-13 07:16:45,781 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 167 [2020-10-13 07:17:13,543 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 53 [2020-10-13 07:17:13,812 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 65 [2020-10-13 07:17:13,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:17:13,886 INFO L93 Difference]: Finished difference Result 8456 states and 13437 transitions. [2020-10-13 07:17:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 07:17:13,888 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1126 [2020-10-13 07:17:13,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:17:13,919 INFO L225 Difference]: With dead ends: 8456 [2020-10-13 07:17:13,919 INFO L226 Difference]: Without dead ends: 6067 [2020-10-13 07:17:13,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=277, Invalid=983, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 07:17:13,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6067 states. [2020-10-13 07:17:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6067 to 5950. [2020-10-13 07:17:14,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5950 states. [2020-10-13 07:17:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5950 states to 5950 states and 8880 transitions. [2020-10-13 07:17:14,088 INFO L78 Accepts]: Start accepts. Automaton has 5950 states and 8880 transitions. Word has length 1126 [2020-10-13 07:17:14,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:17:14,090 INFO L479 AbstractCegarLoop]: Abstraction has 5950 states and 8880 transitions. [2020-10-13 07:17:14,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 07:17:14,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5950 states and 8880 transitions. [2020-10-13 07:17:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2020-10-13 07:17:14,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:17:14,119 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:17:14,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 07:17:14,120 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:17:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:17:14,121 INFO L82 PathProgramCache]: Analyzing trace with hash 837071114, now seen corresponding path program 1 times [2020-10-13 07:17:14,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:17:14,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985740535] [2020-10-13 07:17:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:17:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:14,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:19,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:19,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1171 [2020-10-13 07:17:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:17:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5201 [2020-10-13 07:17:19,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 07:17:19,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:17:19,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 891 [2020-10-13 07:17:19,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:17:21,996 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-10-13 07:17:22,116 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-10-13 07:17:22,282 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-10-13 07:17:22,527 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2020-10-13 07:17:22,758 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-10-13 07:17:23,036 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-10-13 07:17:23,353 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2020-10-13 07:17:23,678 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2020-10-13 07:17:23,973 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-13 07:17:24,188 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-10-13 07:17:24,378 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-10-13 07:17:24,568 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-10-13 07:17:24,750 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2020-10-13 07:17:24,899 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-10-13 07:17:25,181 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-13 07:17:25,437 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:17:25,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:17:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:25,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:25,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:17:25,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:17:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 07:17:25,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:17:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:17:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:17:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:17:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:17:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:25,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:26,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:26,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:17:26,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:17:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-13 07:17:26,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:17:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:17:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:17:26,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:17:27,124 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-10-13 07:17:27,562 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2020-10-13 07:17:27,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 07:17:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:27,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:27,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:27,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 07:17:27,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:17:27,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 07:17:27,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:17:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:17:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 07:17:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0