/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 20:04:49,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 20:04:49,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 20:04:49,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 20:04:49,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 20:04:49,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 20:04:49,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 20:04:49,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 20:04:49,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 20:04:49,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 20:04:49,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 20:04:49,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 20:04:49,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 20:04:49,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 20:04:49,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 20:04:49,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 20:04:49,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 20:04:49,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 20:04:49,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 20:04:49,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 20:04:49,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 20:04:49,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 20:04:49,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 20:04:49,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 20:04:49,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 20:04:49,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 20:04:49,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 20:04:49,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 20:04:49,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 20:04:49,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 20:04:49,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 20:04:49,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 20:04:49,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 20:04:49,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 20:04:49,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 20:04:49,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 20:04:49,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 20:04:49,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 20:04:49,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 20:04:49,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 20:04:49,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 20:04:49,991 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 [2020-10-14 20:04:50,029 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 20:04:50,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 20:04:50,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 20:04:50,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 20:04:50,032 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 20:04:50,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 20:04:50,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 20:04:50,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 20:04:50,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 20:04:50,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 20:04:50,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 20:04:50,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 20:04:50,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 20:04:50,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 20:04:50,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 20:04:50,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 20:04:50,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 20:04:50,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 20:04:50,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 20:04:50,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 20:04:50,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 20:04:50,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:04:50,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 20:04:50,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 20:04:50,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 20:04:50,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 20:04:50,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 20:04:50,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 20:04:50,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 20:04:50,038 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 20:04:50,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 20:04:50,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 20:04:50,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 20:04:50,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 20:04:50,353 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 20:04:50,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label59.c [2020-10-14 20:04:50,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebaf04cf5/3c3dbfe5bab44bbca51d716a5cb9f991/FLAG34282f0aa [2020-10-14 20:04:51,335 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 20:04:51,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label59.c [2020-10-14 20:04:51,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebaf04cf5/3c3dbfe5bab44bbca51d716a5cb9f991/FLAG34282f0aa [2020-10-14 20:04:51,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebaf04cf5/3c3dbfe5bab44bbca51d716a5cb9f991 [2020-10-14 20:04:51,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 20:04:51,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 20:04:51,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 20:04:51,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 20:04:51,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 20:04:51,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:04:51" (1/1) ... [2020-10-14 20:04:51,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5d5e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:51, skipping insertion in model container [2020-10-14 20:04:51,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:04:51" (1/1) ... [2020-10-14 20:04:51,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 20:04:52,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 20:04:54,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:04:54,409 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 20:04:55,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:04:55,544 INFO L208 MainTranslator]: Completed translation [2020-10-14 20:04:55,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55 WrapperNode [2020-10-14 20:04:55,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 20:04:55,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 20:04:55,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 20:04:55,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 20:04:55,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (1/1) ... [2020-10-14 20:04:55,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 20:04:55,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 20:04:55,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 20:04:55,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 20:04:55,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (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 [2020-10-14 20:04:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 20:04:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 20:04:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 20:04:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 20:04:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 20:04:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 20:04:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 20:04:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 20:04:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 20:04:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 20:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 20:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 20:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 20:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 20:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 20:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 20:04:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 20:04:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 20:04:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:05:02,730 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:05:02,731 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:05:02,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:05:02 BoogieIcfgContainer [2020-10-14 20:05:02,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:05:02,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:05:02,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:05:02,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:05:02,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:04:51" (1/3) ... [2020-10-14 20:05:02,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf00613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:05:02, skipping insertion in model container [2020-10-14 20:05:02,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:04:55" (2/3) ... [2020-10-14 20:05:02,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf00613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:05:02, skipping insertion in model container [2020-10-14 20:05:02,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:05:02" (3/3) ... [2020-10-14 20:05:02,754 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label59.c [2020-10-14 20:05:02,765 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:05:02,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:05:02,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:05:02,817 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:05:02,817 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:05:02,817 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:05:02,817 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:05:02,817 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:05:02,817 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:05:02,818 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:05:02,818 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:05:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-14 20:05:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2020-10-14 20:05:02,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:05:02,936 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] [2020-10-14 20:05:02,937 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:05:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:05:02,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1084108409, now seen corresponding path program 1 times [2020-10-14 20:05:02,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:05:02,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99024152] [2020-10-14 20:05:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:05:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:04,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:05,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:09,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:09,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 972 [2020-10-14 20:05:09,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:05:09,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5433 [2020-10-14 20:05:09,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:09,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 20:05:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:05:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 966 [2020-10-14 20:05:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 20:05:10,849 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:05:10,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:05:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:10,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:10,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:10,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:05:10,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:05:10,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 20:05:10,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:10,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:05:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:05:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:05:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:05:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:05:13,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99024152] [2020-10-14 20:05:13,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:05:13,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 20:05:13,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855570352] [2020-10-14 20:05:13,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 20:05:13,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:05:13,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 20:05:13,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 20:05:13,131 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 4 states. [2020-10-14 20:05:13,344 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:05:26,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:05:26,588 INFO L93 Difference]: Finished difference Result 3767 states and 7040 transitions. [2020-10-14 20:05:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:05:26,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 956 [2020-10-14 20:05:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:05:26,635 INFO L225 Difference]: With dead ends: 3767 [2020-10-14 20:05:26,636 INFO L226 Difference]: Without dead ends: 2388 [2020-10-14 20:05:26,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:05:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2020-10-14 20:05:26,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2332. [2020-10-14 20:05:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-10-14 20:05:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 4231 transitions. [2020-10-14 20:05:26,815 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 4231 transitions. Word has length 956 [2020-10-14 20:05:26,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:05:26,818 INFO L479 AbstractCegarLoop]: Abstraction has 2332 states and 4231 transitions. [2020-10-14 20:05:26,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 20:05:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 4231 transitions. [2020-10-14 20:05:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2020-10-14 20:05:26,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:05:26,854 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:05:26,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:05:26,854 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:05:26,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:05:26,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1032429398, now seen corresponding path program 1 times [2020-10-14 20:05:26,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:05:26,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362082929] [2020-10-14 20:05:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:05:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:27,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:30,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:32,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:32,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 986 [2020-10-14 20:05:32,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:05:32,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5196 [2020-10-14 20:05:32,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:32,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:32,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:05:32,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 20:05:32,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 963 [2020-10-14 20:05:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 20:05:33,595 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:05:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:05:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:33,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:33,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:33,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:05:33,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:05:33,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:05:33,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:33,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:05:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:05:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:05:33,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 20:05:33,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:05:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:33,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 20:05:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:05:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 20:05:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:33,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:05:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:05:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 20:05:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:05:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:05:35,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362082929] [2020-10-14 20:05:35,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:05:35,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:05:35,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765804378] [2020-10-14 20:05:35,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:05:35,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:05:35,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:05:35,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:05:35,123 INFO L87 Difference]: Start difference. First operand 2332 states and 4231 transitions. Second operand 6 states. [2020-10-14 20:05:35,409 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:05:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:05:53,059 INFO L93 Difference]: Finished difference Result 6891 states and 12621 transitions. [2020-10-14 20:05:53,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:05:53,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 968 [2020-10-14 20:05:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:05:53,092 INFO L225 Difference]: With dead ends: 6891 [2020-10-14 20:05:53,092 INFO L226 Difference]: Without dead ends: 4565 [2020-10-14 20:05:53,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:05:53,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2020-10-14 20:05:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4538. [2020-10-14 20:05:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4538 states. [2020-10-14 20:05:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 7683 transitions. [2020-10-14 20:05:53,261 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 7683 transitions. Word has length 968 [2020-10-14 20:05:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:05:53,263 INFO L479 AbstractCegarLoop]: Abstraction has 4538 states and 7683 transitions. [2020-10-14 20:05:53,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 20:05:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 7683 transitions. [2020-10-14 20:05:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2020-10-14 20:05:53,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:05:53,301 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-14 20:05:53,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:05:53,302 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:05:53,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:05:53,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1835826572, now seen corresponding path program 1 times [2020-10-14 20:05:53,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:05:53,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458035463] [2020-10-14 20:05:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:05:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:53,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:55,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:58,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:58,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 993 [2020-10-14 20:05:58,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:05:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 20:05:58,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:58,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:05:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 20:05:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 963 [2020-10-14 20:05:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:05:59,101 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:05:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:05:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:59,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:59,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:05:59,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:05:59,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:05:59,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:59,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:05:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:05:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:05:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:05:59,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:05:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:05:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:05:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:05:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 20:05:59,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:05:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 20:05:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:05:59,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:05:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:05:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:05:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 20:05:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:05:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:05:59,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458035463] [2020-10-14 20:05:59,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:05:59,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:05:59,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834847267] [2020-10-14 20:05:59,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:05:59,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:05:59,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:05:59,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:06:00,000 INFO L87 Difference]: Start difference. First operand 4538 states and 7683 transitions. Second operand 5 states. [2020-10-14 20:06:00,210 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:06:15,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:06:15,343 INFO L93 Difference]: Finished difference Result 13269 states and 22799 transitions. [2020-10-14 20:06:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:06:15,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 975 [2020-10-14 20:06:15,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:06:15,391 INFO L225 Difference]: With dead ends: 13269 [2020-10-14 20:06:15,394 INFO L226 Difference]: Without dead ends: 8737 [2020-10-14 20:06:15,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:06:15,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8737 states. [2020-10-14 20:06:15,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8737 to 8702. [2020-10-14 20:06:15,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8702 states. [2020-10-14 20:06:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 13191 transitions. [2020-10-14 20:06:15,639 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 13191 transitions. Word has length 975 [2020-10-14 20:06:15,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:06:15,641 INFO L479 AbstractCegarLoop]: Abstraction has 8702 states and 13191 transitions. [2020-10-14 20:06:15,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:06:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 13191 transitions. [2020-10-14 20:06:15,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2020-10-14 20:06:15,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:06:15,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:06:15,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:06:15,677 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:06:15,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:06:15,678 INFO L82 PathProgramCache]: Analyzing trace with hash 497937035, now seen corresponding path program 1 times [2020-10-14 20:06:15,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:06:15,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861066401] [2020-10-14 20:06:15,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:06:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:06:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:17,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:20,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:20,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:06:20,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1014 [2020-10-14 20:06:20,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:06:20,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 20:06:20,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:06:20,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:06:20,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:06:20,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 20:06:20,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 965 [2020-10-14 20:06:20,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:06:21,981 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:06:21,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:06:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:06:21,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:21,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:06:21,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:06:21,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:06:21,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 20:06:21,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:06:21,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:06:21,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:06:21,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:06:21,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:06:21,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:06:22,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:06:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:06:22,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:22,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:06:22,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 20:06:22,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:06:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 20:06:22,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:06:22,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:06:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:06:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:06:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 20:06:22,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:06:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:06:23,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861066401] [2020-10-14 20:06:23,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:06:23,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:06:23,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419877635] [2020-10-14 20:06:23,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:06:23,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:06:23,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:06:23,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:06:23,074 INFO L87 Difference]: Start difference. First operand 8702 states and 13191 transitions. Second operand 5 states. [2020-10-14 20:06:23,322 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:06:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:06:39,279 INFO L93 Difference]: Finished difference Result 21561 states and 33441 transitions. [2020-10-14 20:06:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:06:39,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 996 [2020-10-14 20:06:39,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:06:39,337 INFO L225 Difference]: With dead ends: 21561 [2020-10-14 20:06:39,337 INFO L226 Difference]: Without dead ends: 12865 [2020-10-14 20:06:39,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:06:39,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12865 states. [2020-10-14 20:06:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12865 to 12851. [2020-10-14 20:06:39,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12851 states. [2020-10-14 20:06:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12851 states to 12851 states and 19212 transitions. [2020-10-14 20:06:39,687 INFO L78 Accepts]: Start accepts. Automaton has 12851 states and 19212 transitions. Word has length 996 [2020-10-14 20:06:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:06:39,690 INFO L479 AbstractCegarLoop]: Abstraction has 12851 states and 19212 transitions. [2020-10-14 20:06:39,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:06:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 12851 states and 19212 transitions. [2020-10-14 20:06:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-14 20:06:39,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:06:39,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:06:39,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:06:39,736 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:06:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:06:39,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1417815848, now seen corresponding path program 1 times [2020-10-14 20:06:39,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:06:39,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265256157] [2020-10-14 20:06:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:06:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:06:39,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:41,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:44,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:06:44,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-14 20:06:44,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:06:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 20:06:44,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:06:44,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:06:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:06:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 20:06:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 963 [2020-10-14 20:06:44,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:06:45,934 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:06:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:06:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:06:45,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:06:45,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:06:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:06:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:06:46,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:06:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:06:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:06:46,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:06:46,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 20:06:46,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:06:46,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 20:06:46,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:06:46,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:06:46,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:06:46,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:06:46,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 20:06:46,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:06:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:06:46,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265256157] [2020-10-14 20:06:46,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:06:46,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:06:46,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122650172] [2020-10-14 20:06:46,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:06:46,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:06:46,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:06:46,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:06:46,883 INFO L87 Difference]: Start difference. First operand 12851 states and 19212 transitions. Second operand 5 states. [2020-10-14 20:06:47,108 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:07:01,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:07:01,570 INFO L93 Difference]: Finished difference Result 38113 states and 58506 transitions. [2020-10-14 20:07:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:07:01,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1002 [2020-10-14 20:07:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:07:01,663 INFO L225 Difference]: With dead ends: 38113 [2020-10-14 20:07:01,663 INFO L226 Difference]: Without dead ends: 25268 [2020-10-14 20:07:01,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:07:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25268 states. [2020-10-14 20:07:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25268 to 25226. [2020-10-14 20:07:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25226 states. [2020-10-14 20:07:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25226 states to 25226 states and 36156 transitions. [2020-10-14 20:07:02,351 INFO L78 Accepts]: Start accepts. Automaton has 25226 states and 36156 transitions. Word has length 1002 [2020-10-14 20:07:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:07:02,353 INFO L479 AbstractCegarLoop]: Abstraction has 25226 states and 36156 transitions. [2020-10-14 20:07:02,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:07:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 25226 states and 36156 transitions. [2020-10-14 20:07:02,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2020-10-14 20:07:02,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:07:02,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:07:02,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:07:02,442 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:07:02,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:07:02,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1306795992, now seen corresponding path program 1 times [2020-10-14 20:07:02,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:07:02,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411111179] [2020-10-14 20:07:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:07:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:02,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:04,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:07,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:07,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1045 [2020-10-14 20:07:07,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:07:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-14 20:07:07,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:07,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:07:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 20:07:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 963 [2020-10-14 20:07:07,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:08,178 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:07:08,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:07:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:08,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:08,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:08,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:07:08,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:07:08,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:08,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:07:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:07:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:07:08,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:08,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:07:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:08,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:08,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 20:07:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:09,263 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 67 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:07:09,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411111179] [2020-10-14 20:07:09,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:07:09,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:07:09,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740619811] [2020-10-14 20:07:09,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:07:09,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:07:09,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:07:09,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:07:09,267 INFO L87 Difference]: Start difference. First operand 25226 states and 36156 transitions. Second operand 5 states. [2020-10-14 20:07:09,480 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:07:26,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:07:26,199 INFO L93 Difference]: Finished difference Result 62865 states and 93545 transitions. [2020-10-14 20:07:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:07:26,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1027 [2020-10-14 20:07:26,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:07:26,328 INFO L225 Difference]: With dead ends: 62865 [2020-10-14 20:07:26,328 INFO L226 Difference]: Without dead ends: 37645 [2020-10-14 20:07:26,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:07:26,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37645 states. [2020-10-14 20:07:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37645 to 35575. [2020-10-14 20:07:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35575 states. [2020-10-14 20:07:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35575 states to 35575 states and 51282 transitions. [2020-10-14 20:07:27,501 INFO L78 Accepts]: Start accepts. Automaton has 35575 states and 51282 transitions. Word has length 1027 [2020-10-14 20:07:27,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:07:27,504 INFO L479 AbstractCegarLoop]: Abstraction has 35575 states and 51282 transitions. [2020-10-14 20:07:27,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:07:27,504 INFO L276 IsEmpty]: Start isEmpty. Operand 35575 states and 51282 transitions. [2020-10-14 20:07:27,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2020-10-14 20:07:27,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:07:27,584 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, 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] [2020-10-14 20:07:27,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:07:27,584 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:07:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:07:27,585 INFO L82 PathProgramCache]: Analyzing trace with hash -2077541447, now seen corresponding path program 1 times [2020-10-14 20:07:27,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:07:27,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984472094] [2020-10-14 20:07:27,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:07:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:28,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:28,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:33,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:33,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1098 [2020-10-14 20:07:33,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:07:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 20:07:33,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:33,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:07:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-10-14 20:07:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 963 [2020-10-14 20:07:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:33,540 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:07:33,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:07:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:33,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:33,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:33,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:07:33,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:07:33,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:33,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:07:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:07:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:07:33,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:07:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:33,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:33,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:07:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 20:07:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 120 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:07:34,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984472094] [2020-10-14 20:07:34,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:07:34,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:07:34,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877101203] [2020-10-14 20:07:34,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:07:34,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:07:34,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:07:34,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:07:34,793 INFO L87 Difference]: Start difference. First operand 35575 states and 51282 transitions. Second operand 5 states. [2020-10-14 20:07:35,018 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:07:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:07:50,983 INFO L93 Difference]: Finished difference Result 88635 states and 133979 transitions. [2020-10-14 20:07:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:07:50,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1080 [2020-10-14 20:07:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:07:51,173 INFO L225 Difference]: With dead ends: 88635 [2020-10-14 20:07:51,173 INFO L226 Difference]: Without dead ends: 53066 [2020-10-14 20:07:51,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:07:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53066 states. [2020-10-14 20:07:52,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53066 to 53021. [2020-10-14 20:07:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53021 states. [2020-10-14 20:07:52,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53021 states to 53021 states and 77029 transitions. [2020-10-14 20:07:52,454 INFO L78 Accepts]: Start accepts. Automaton has 53021 states and 77029 transitions. Word has length 1080 [2020-10-14 20:07:52,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:07:52,455 INFO L479 AbstractCegarLoop]: Abstraction has 53021 states and 77029 transitions. [2020-10-14 20:07:52,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:07:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand 53021 states and 77029 transitions. [2020-10-14 20:07:52,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1122 [2020-10-14 20:07:52,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:07:52,588 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:07:52,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:07:52,588 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:07:52,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:07:52,589 INFO L82 PathProgramCache]: Analyzing trace with hash -770942921, now seen corresponding path program 1 times [2020-10-14 20:07:52,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:07:52,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610329910] [2020-10-14 20:07:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:07:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:52,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:57,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:57,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1139 [2020-10-14 20:07:57,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:57,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4395 [2020-10-14 20:07:57,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:57,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:07:57,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:07:57,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 20:07:57,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:57,419 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:07:57,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:07:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:57,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:57,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:57,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:07:57,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:07:57,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:57,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:07:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:07:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:07:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:07:57,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:07:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:07:57,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:07:57,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:07:57,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 20:07:57,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:07:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 20:07:57,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:07:57,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:07:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:07:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:07:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 20:07:57,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:07:58,352 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:07:58,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610329910] [2020-10-14 20:07:58,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:07:58,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:07:58,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219719350] [2020-10-14 20:07:58,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:07:58,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:07:58,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:07:58,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:07:58,356 INFO L87 Difference]: Start difference. First operand 53021 states and 77029 transitions. Second operand 7 states. [2020-10-14 20:07:58,500 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:07:59,458 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:08:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:08:16,050 INFO L93 Difference]: Finished difference Result 160380 states and 258598 transitions. [2020-10-14 20:08:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:08:16,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1121 [2020-10-14 20:08:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:08:16,591 INFO L225 Difference]: With dead ends: 160380 [2020-10-14 20:08:16,591 INFO L226 Difference]: Without dead ends: 107365 [2020-10-14 20:08:16,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:08:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107365 states. [2020-10-14 20:08:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107365 to 107134. [2020-10-14 20:08:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107134 states. [2020-10-14 20:08:19,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107134 states to 107134 states and 164911 transitions. [2020-10-14 20:08:19,702 INFO L78 Accepts]: Start accepts. Automaton has 107134 states and 164911 transitions. Word has length 1121 [2020-10-14 20:08:19,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:08:19,703 INFO L479 AbstractCegarLoop]: Abstraction has 107134 states and 164911 transitions. [2020-10-14 20:08:19,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:08:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 107134 states and 164911 transitions. [2020-10-14 20:08:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2020-10-14 20:08:19,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:08:19,972 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:08:19,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 20:08:19,972 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:08:19,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:08:19,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1301227586, now seen corresponding path program 1 times [2020-10-14 20:08:19,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:08:19,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146222277] [2020-10-14 20:08:19,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:08:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:08:20,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:08:21,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:08:25,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:08:25,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1166 [2020-10-14 20:08:25,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:08:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-14 20:08:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:08:25,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:08:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:08:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:08:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 20:08:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:08:25,840 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:08:25,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:08:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:08:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:08:25,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:08:25,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:08:25,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:08:25,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 20:08:25,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:08:25,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:08:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:08:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:08:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:08:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:08:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:08:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:08:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:08:25,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:08:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:08:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 20:08:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:08:26,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 20:08:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:08:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:08:26,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:08:26,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 20:08:26,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:08:26,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-14 20:08:26,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:08:26,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:08:26,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:08:26,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:08:26,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 20:08:26,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0