/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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 07:14:01,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 07:14:01,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 07:14:01,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 07:14:01,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 07:14:01,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 07:14:01,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 07:14:01,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 07:14:01,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 07:14:01,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 07:14:01,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 07:14:01,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 07:14:01,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 07:14:01,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 07:14:01,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 07:14:01,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 07:14:01,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 07:14:01,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 07:14:01,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 07:14:01,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 07:14:01,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 07:14:01,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 07:14:01,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 07:14:01,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 07:14:01,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 07:14:01,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 07:14:01,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 07:14:01,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 07:14:01,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 07:14:01,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 07:14:01,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 07:14:01,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 07:14:01,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 07:14:01,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 07:14:01,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 07:14:01,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 07:14:01,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 07:14:01,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 07:14:01,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 07:14:01,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 07:14:01,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 07:14:01,838 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 07:14:01,859 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 07:14:01,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 07:14:01,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 07:14:01,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 07:14:01,861 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 07:14:01,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 07:14:01,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 07:14:01,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 07:14:01,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 07:14:01,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 07:14:01,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 07:14:01,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 07:14:01,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 07:14:01,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 07:14:01,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 07:14:01,863 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 07:14:01,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 07:14:01,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 07:14:01,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 07:14:01,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 07:14:01,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 07:14:01,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:14:01,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 07:14:01,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 07:14:01,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 07:14:01,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 07:14:01,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 07:14:01,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 07:14:01,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 07:14:01,866 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 07:14:02,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 07:14:02,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 07:14:02,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 07:14:02,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 07:14:02,193 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 07:14:02,194 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label51.c [2020-10-13 07:14:02,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ffd54510/b3408bf268c845a5a42f92050ee35c1c/FLAG51a26f27e [2020-10-13 07:14:03,156 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 07:14:03,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label51.c [2020-10-13 07:14:03,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ffd54510/b3408bf268c845a5a42f92050ee35c1c/FLAG51a26f27e [2020-10-13 07:14:03,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ffd54510/b3408bf268c845a5a42f92050ee35c1c [2020-10-13 07:14:03,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 07:14:03,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 07:14:03,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 07:14:03,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 07:14:03,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 07:14:03,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:14:03" (1/1) ... [2020-10-13 07:14:03,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514b9a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:03, skipping insertion in model container [2020-10-13 07:14:03,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:14:03" (1/1) ... [2020-10-13 07:14:03,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 07:14:03,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 07:14:06,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:14:06,100 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 07:14:07,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:14:07,280 INFO L208 MainTranslator]: Completed translation [2020-10-13 07:14:07,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07 WrapperNode [2020-10-13 07:14:07,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 07:14:07,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 07:14:07,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 07:14:07,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 07:14:07,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (1/1) ... [2020-10-13 07:14:07,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 07:14:07,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 07:14:07,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 07:14:07,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 07:14:07,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (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 07:14:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 07:14:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 07:14:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 07:14:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 07:14:07,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 07:14:07,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 07:14:07,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 07:14:07,803 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 07:14:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 07:14:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 07:14:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 07:14:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 07:14:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 07:14:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 07:14:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 07:14:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 07:14:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 07:14:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 07:14:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 07:14:14,449 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 07:14:14,450 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 07:14:14,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:14 BoogieIcfgContainer [2020-10-13 07:14:14,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 07:14:14,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 07:14:14,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 07:14:14,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 07:14:14,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:14:03" (1/3) ... [2020-10-13 07:14:14,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607bed36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:14, skipping insertion in model container [2020-10-13 07:14:14,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:07" (2/3) ... [2020-10-13 07:14:14,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607bed36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:14, skipping insertion in model container [2020-10-13 07:14:14,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:14" (3/3) ... [2020-10-13 07:14:14,473 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label51.c [2020-10-13 07:14:14,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 07:14:14,497 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 07:14:14,511 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 07:14:14,539 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 07:14:14,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 07:14:14,539 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 07:14:14,539 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 07:14:14,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 07:14:14,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 07:14:14,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 07:14:14,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 07:14:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-13 07:14:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2020-10-13 07:14:14,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:14:14,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:14,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:14:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:14:14,648 INFO L82 PathProgramCache]: Analyzing trace with hash -822123368, now seen corresponding path program 1 times [2020-10-13 07:14:14,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:14:14,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529362947] [2020-10-13 07:14:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:14:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:14:16,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:14:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:14:20,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:14:20,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1011 [2020-10-13 07:14:20,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:14:20,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-13 07:14:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:14:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 07:14:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:14:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 769 [2020-10-13 07:14:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:14:26,482 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 53 [2020-10-13 07:14:26,635 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-10-13 07:14:26,818 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-10-13 07:14:27,143 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2020-10-13 07:14:27,472 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2020-10-13 07:14:27,934 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 91 [2020-10-13 07:14:28,214 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 76 [2020-10-13 07:14:28,463 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-10-13 07:14:28,726 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-10-13 07:14:28,954 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-10-13 07:14:29,199 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-10-13 07:14:29,442 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-10-13 07:14:29,643 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-10-13 07:14:29,894 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 62 [2020-10-13 07:14:30,173 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 63 [2020-10-13 07:14:30,510 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 62 [2020-10-13 07:14:30,699 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:14:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:14:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:14:30,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:14:30,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:14:30,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:14:30,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:14:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 07:14:30,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:14:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:14:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:14:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:14:30,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:14:44,979 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 07:14:44,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529362947] [2020-10-13 07:14:44,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:14:44,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 07:14:44,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086403278] [2020-10-13 07:14:44,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 07:14:44,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:14:45,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 07:14:45,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-13 07:14:45,008 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 20 states. [2020-10-13 07:14:45,357 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 07:14:45,981 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 168 [2020-10-13 07:14:46,762 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 173 [2020-10-13 07:14:47,634 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 183 [2020-10-13 07:14:52,562 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 228 DAG size of output: 181 [2020-10-13 07:14:56,429 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-13 07:14:59,311 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 171 [2020-10-13 07:15:00,179 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 182 [2020-10-13 07:15:01,638 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 213 DAG size of output: 180 [2020-10-13 07:15:12,270 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 168 [2020-10-13 07:15:13,023 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 177 [2020-10-13 07:15:16,475 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 176 [2020-10-13 07:15:25,232 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 167 [2020-10-13 07:15:26,042 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 176 [2020-10-13 07:15:28,971 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 172 [2020-10-13 07:15:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:15:43,866 INFO L93 Difference]: Finished difference Result 3396 states and 6359 transitions. [2020-10-13 07:15:43,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 07:15:43,868 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 995 [2020-10-13 07:15:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:15:43,925 INFO L225 Difference]: With dead ends: 3396 [2020-10-13 07:15:43,925 INFO L226 Difference]: Without dead ends: 2019 [2020-10-13 07:15:43,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 07:15:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-10-13 07:15:44,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2019. [2020-10-13 07:15:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-13 07:15:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 3053 transitions. [2020-10-13 07:15:44,103 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 3053 transitions. Word has length 995 [2020-10-13 07:15:44,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:15:44,106 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 3053 transitions. [2020-10-13 07:15:44,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 07:15:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 3053 transitions. [2020-10-13 07:15:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2020-10-13 07:15:44,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:15:44,156 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] [2020-10-13 07:15:44,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 07:15:44,156 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:15:44,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:15:44,157 INFO L82 PathProgramCache]: Analyzing trace with hash -274063387, now seen corresponding path program 1 times [2020-10-13 07:15:44,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:15:44,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549643625] [2020-10-13 07:15:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:15:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:44,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:45,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:49,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:15:49,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1083 [2020-10-13 07:15:49,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:15:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5134 [2020-10-13 07:15:49,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:15:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 07:15:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:15:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 07:15:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:15:50,156 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:15:50,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:15:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:50,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:15:50,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:15:50,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:15:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 07:15:50,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:15:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:15:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:15:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:15:50,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:15:50,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:15:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:15:50,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:15:50,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:15:50,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 07:15:50,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:15:50,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-13 07:15:50,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:15:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 07:15:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:15:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 07:15:50,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:15:51,318 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 07:15:51,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549643625] [2020-10-13 07:15:51,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:15:51,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 07:15:51,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352613912] [2020-10-13 07:15:51,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 07:15:51,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:15:51,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 07:15:51,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 07:15:51,324 INFO L87 Difference]: Start difference. First operand 2019 states and 3053 transitions. Second operand 7 states. [2020-10-13 07:15:51,522 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 07:15:52,612 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 07:16:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:16:12,543 INFO L93 Difference]: Finished difference Result 4509 states and 7548 transitions. [2020-10-13 07:16:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 07:16:12,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1065 [2020-10-13 07:16:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:16:12,564 INFO L225 Difference]: With dead ends: 4509 [2020-10-13 07:16:12,564 INFO L226 Difference]: Without dead ends: 3250 [2020-10-13 07:16:12,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 07:16:12,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-13 07:16:12,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3162. [2020-10-13 07:16:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3162 states. [2020-10-13 07:16:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 4673 transitions. [2020-10-13 07:16:12,666 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 4673 transitions. Word has length 1065 [2020-10-13 07:16:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:16:12,666 INFO L479 AbstractCegarLoop]: Abstraction has 3162 states and 4673 transitions. [2020-10-13 07:16:12,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 07:16:12,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 4673 transitions. [2020-10-13 07:16:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2020-10-13 07:16:12,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:16:12,686 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] [2020-10-13 07:16:12,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 07:16:12,687 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:16:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:16:12,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1420852418, now seen corresponding path program 1 times [2020-10-13 07:16:12,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:16:12,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585208003] [2020-10-13 07:16:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:16:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:16:13,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:14,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:18,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:16:18,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1135 [2020-10-13 07:16:18,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:16:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-13 07:16:18,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:16:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 07:16:18,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:16:18,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-13 07:16:18,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:16:20,070 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:16:20,241 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:16:20,412 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:16:20,668 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2020-10-13 07:16:20,891 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-13 07:16:21,071 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2020-10-13 07:16:21,242 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-10-13 07:16:21,390 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 07:16:21,669 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:16:21,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:16:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:16:21,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:21,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:16:21,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:16:21,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:16:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 07:16:21,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:16:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:16:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:16:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:16:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:16:21,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:16:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:16:21,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:16:22,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:16:22,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:16:22,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:16:22,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-13 07:16:22,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:16:22,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:16:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:16:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:16:22,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:16:22,769 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-13 07:16:23,069 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-13 07:16:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 2 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:16:32,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585208003] [2020-10-13 07:16:32,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 07:16:32,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 07:16:32,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596619620] [2020-10-13 07:16:32,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 07:16:32,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:16:32,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 07:16:32,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-10-13 07:16:32,055 INFO L87 Difference]: Start difference. First operand 3162 states and 4673 transitions. Second operand 20 states. [2020-10-13 07:16:32,292 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 07:16:34,460 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2020-10-13 07:16:34,837 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2020-10-13 07:16:35,191 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-13 07:16:35,896 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 168 [2020-10-13 07:16:36,657 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 176 [2020-10-13 07:16:38,015 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 175 [2020-10-13 07:16:41,369 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 174 [2020-10-13 07:16:50,677 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2020-10-13 07:16:51,475 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 178 [2020-10-13 07:16:52,983 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 175 [2020-10-13 07:17:02,903 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 172 [2020-10-13 07:17:04,121 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 167 [2020-10-13 07:17:30,704 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-10-13 07:17:30,927 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-10-13 07:17:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:17:30,968 INFO L93 Difference]: Finished difference Result 8485 states and 13480 transitions. [2020-10-13 07:17:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 07:17:30,969 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1117 [2020-10-13 07:17:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:17:30,998 INFO L225 Difference]: With dead ends: 8485 [2020-10-13 07:17:30,998 INFO L226 Difference]: Without dead ends: 6083 [2020-10-13 07:17:31,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 07:17:31,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6083 states. [2020-10-13 07:17:31,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 5985. [2020-10-13 07:17:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5985 states. [2020-10-13 07:17:31,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 8920 transitions. [2020-10-13 07:17:31,189 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 8920 transitions. Word has length 1117 [2020-10-13 07:17:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:17:31,191 INFO L479 AbstractCegarLoop]: Abstraction has 5985 states and 8920 transitions. [2020-10-13 07:17:31,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 07:17:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 8920 transitions. [2020-10-13 07:17:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2020-10-13 07:17:31,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:17:31,221 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] [2020-10-13 07:17:31,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 07:17:31,222 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:17:31,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:17:31,222 INFO L82 PathProgramCache]: Analyzing trace with hash 726079861, now seen corresponding path program 1 times [2020-10-13 07:17:31,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:17:31,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936479569] [2020-10-13 07:17:31,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:17:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:31,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:33,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:35,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:36,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1162 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5257 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 891 [2020-10-13 07:17:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:17:39,055 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-10-13 07:17:39,280 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-10-13 07:17:39,509 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-10-13 07:17:39,752 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-10-13 07:17:39,992 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-10-13 07:17:40,213 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-13 07:17:40,398 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-13 07:17:40,604 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-13 07:17:40,855 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2020-10-13 07:17:41,067 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-10-13 07:17:41,248 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-10-13 07:17:41,774 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:17:41,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:17:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:41,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:41,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:17:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:17:41,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:17:41,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:17:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:41,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:42,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:42,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:17:42,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:17:42,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-13 07:17:42,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:17:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:17:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:17:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:17:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 07:17:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:17:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:17:42,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:17:42,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 07:17:42,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:17:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 07:17:42,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:17:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:17:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:17:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 07:17:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:17:42,744 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-13 07:17:43,094 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90