/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:59:37,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:59:37,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:59:37,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:59:37,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:59:37,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:59:37,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:59:37,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:59:37,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:59:37,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:59:37,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:59:37,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:59:37,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:59:37,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:59:37,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:59:37,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:59:37,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:59:37,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:59:37,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:59:37,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:59:37,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:59:37,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:59:37,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:59:37,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:59:37,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:59:37,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:59:37,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:59:37,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:59:37,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:59:37,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:59:37,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:59:37,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:59:37,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:59:37,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:59:37,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:59:37,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:59:37,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:59:37,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:59:37,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:59:37,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:59:37,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:59:37,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:59:37,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:59:37,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:59:37,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:59:37,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:59:37,897 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:59:37,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:59:37,898 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:59:37,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:59:37,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:59:37,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:59:37,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:59:37,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:59:37,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:59:37,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:59:37,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:59:37,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:59:37,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:59:37,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:59:37,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:59:37,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:59:37,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:59:37,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:37,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:59:37,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:59:37,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:59:37,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:59:37,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:59:37,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:59:37,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:59:37,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:59:38,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:59:38,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:59:38,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:59:38,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:59:38,402 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:59:38,404 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-09-25 09:59:38,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c88705359/998582fb0c8d4a609a80fa030fe510ec/FLAG57ac1a7e1 [2020-09-25 09:59:38,965 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:59:38,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-09-25 09:59:38,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c88705359/998582fb0c8d4a609a80fa030fe510ec/FLAG57ac1a7e1 [2020-09-25 09:59:39,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c88705359/998582fb0c8d4a609a80fa030fe510ec [2020-09-25 09:59:39,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:59:39,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:59:39,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:39,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:59:39,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:59:39,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f58caab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39, skipping insertion in model container [2020-09-25 09:59:39,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:59:39,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:59:39,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:39,621 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:59:39,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:39,654 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:59:39,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39 WrapperNode [2020-09-25 09:59:39,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:39,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:59:39,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:59:39,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:59:39,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:59:39,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:59:39,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:59:39,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:59:39,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:59:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:59:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 09:59:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 09:59:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:59:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:59:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:59:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 09:59:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 09:59:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:59:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:59:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:59:40,088 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:59:40,088 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:59:40,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:40 BoogieIcfgContainer [2020-09-25 09:59:40,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:59:40,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:59:40,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:59:40,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:59:40,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:59:39" (1/3) ... [2020-09-25 09:59:40,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de20fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:40, skipping insertion in model container [2020-09-25 09:59:40,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (2/3) ... [2020-09-25 09:59:40,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de20fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:40, skipping insertion in model container [2020-09-25 09:59:40,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:40" (3/3) ... [2020-09-25 09:59:40,104 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-1.c [2020-09-25 09:59:40,128 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:59:40,145 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:59:40,202 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:59:40,248 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:59:40,248 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:59:40,248 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:59:40,249 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:59:40,249 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:59:40,249 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:59:40,249 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:59:40,250 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:59:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 09:59:40,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 09:59:40,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:40,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:40,281 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:40,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 09:59:40,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:40,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702287371] [2020-09-25 09:59:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:59:40,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 09:59:40,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:40,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:59:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:59:40,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:40,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:59:40,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:40,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 09:59:40,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:40,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:59:40,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702287371] [2020-09-25 09:59:40,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:40,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:40,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589259731] [2020-09-25 09:59:40,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:40,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:40,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:40,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:40,663 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 09:59:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:40,802 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 09:59:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:40,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 09:59:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:40,820 INFO L225 Difference]: With dead ends: 58 [2020-09-25 09:59:40,821 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 09:59:40,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 09:59:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 09:59:40,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 09:59:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 09:59:40,891 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 09:59:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:40,892 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 09:59:40,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 09:59:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 09:59:40,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:40,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:40,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:59:40,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 09:59:40,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:40,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962064525] [2020-09-25 09:59:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 09:59:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 09:59:40,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:40,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:40,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:40,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:59:41,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:41,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:41,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:41,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:41,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:41,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 09:59:41,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:59:41,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962064525] [2020-09-25 09:59:41,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:41,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:41,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773329816] [2020-09-25 09:59:41,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:41,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:41,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:41,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:41,108 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 09:59:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:41,187 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 09:59:41,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:41,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 09:59:41,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:41,190 INFO L225 Difference]: With dead ends: 50 [2020-09-25 09:59:41,190 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 09:59:41,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 09:59:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 09:59:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 09:59:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 09:59:41,202 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 09:59:41,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:41,203 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 09:59:41,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 09:59:41,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 09:59:41,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:41,205 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 09:59:41,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:59:41,206 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:41,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 09:59:41,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:41,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8370507] [2020-09-25 09:59:41,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 09:59:41,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-09-25 09:59:41,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:41,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:41,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:41,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:41,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:41,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:41,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:42,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:42,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 09:59:42,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:42,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:42,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:42,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:59:42,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:42,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:42,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:59:42,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:59:42,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8370507] [2020-09-25 09:59:42,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:42,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:59:42,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825250285] [2020-09-25 09:59:42,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:42,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:42,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:42,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:42,255 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 09:59:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:42,388 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 09:59:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:42,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 09:59:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:42,391 INFO L225 Difference]: With dead ends: 58 [2020-09-25 09:59:42,391 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 09:59:42,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 09:59:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 09:59:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 09:59:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 09:59:42,404 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 09:59:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:42,405 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 09:59:42,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 09:59:42,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 09:59:42,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:42,407 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 09:59:42,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:59:42,408 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:42,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:42,408 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 09:59:42,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:42,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862316714] [2020-09-25 09:59:42,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:59:42,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-09-25 09:59:42,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:42,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:59:42,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:42,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:42,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:43,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:59:43,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 473 [2020-09-25 09:59:43,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:43,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:59:43,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:43,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:43,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:43,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:43,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 09:59:43,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:43,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:43,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:43,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:43,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:43,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:59:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:43,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:43,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:59:43,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862316714] [2020-09-25 09:59:43,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:43,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:43,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043244638] [2020-09-25 09:59:43,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:43,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:43,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:43,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:43,578 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 09:59:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:43,713 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 09:59:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:43,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 09:59:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:43,716 INFO L225 Difference]: With dead ends: 110 [2020-09-25 09:59:43,717 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 09:59:43,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 09:59:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 09:59:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 09:59:43,730 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 09:59:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:43,731 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 09:59:43,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:43,731 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 09:59:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 09:59:43,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:43,734 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 09:59:43,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:59:43,735 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:43,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:43,735 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 09:59:43,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:43,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824683565] [2020-09-25 09:59:43,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:43,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:44,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:44,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 09:59:48,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:48,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:59:48,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 09:59:48,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:48,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:48,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:48,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:48,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:52,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:59:52,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:52,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4116 [2020-09-25 09:59:52,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:52,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:52,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:59:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:52,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:52,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:52,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:52,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 09:59:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:52,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:52,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:52,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:53,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:53,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:53,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:53,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:53,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:53,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:53,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:53,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:53,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:53,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:53,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:53,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:53,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:53,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:53,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:53,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:53,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:59:53,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:53,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:53,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 09:59:53,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824683565] [2020-09-25 09:59:53,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:53,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:53,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395794683] [2020-09-25 09:59:53,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:53,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:53,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:53,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:53,058 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 7 states. [2020-09-25 09:59:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:53,178 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-09-25 09:59:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:53,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 09:59:53,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:53,180 INFO L225 Difference]: With dead ends: 72 [2020-09-25 09:59:53,181 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 09:59:53,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 09:59:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 09:59:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 09:59:53,193 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 51 [2020-09-25 09:59:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:53,194 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 09:59:53,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 09:59:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 09:59:53,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:53,197 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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] [2020-09-25 09:59:53,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:59:53,198 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:53,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 09:59:53,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:53,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718982389] [2020-09-25 09:59:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:53,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:58,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 09:59:58,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 09:59:58,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:59:58,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:58,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:59:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 09:59:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:58,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:58,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:58,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:58,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:58,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:58,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:00,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:00,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 10:00:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:03,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:03,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:03,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:03,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 10:00:03,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:03,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:03,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:03,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:03,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:00:03,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:03,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:03,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:03,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:00:03,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:03,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:03,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:03,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:03,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:03,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:03,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 10:00:03,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:00:03,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:03,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:00:03,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:03,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:03,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:00:03,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:03,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:03,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:03,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:03,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:03,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:03,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:03,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:03,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 17 proven. 15 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 10:00:03,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718982389] [2020-09-25 10:00:03,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:03,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 10:00:03,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914886937] [2020-09-25 10:00:03,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:00:03,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:03,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:00:03,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:00:03,695 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 12 states. [2020-09-25 10:00:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:04,034 INFO L93 Difference]: Finished difference Result 110 states and 148 transitions. [2020-09-25 10:00:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:00:04,035 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-09-25 10:00:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:04,036 INFO L225 Difference]: With dead ends: 110 [2020-09-25 10:00:04,037 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 10:00:04,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:00:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 10:00:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2020-09-25 10:00:04,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-25 10:00:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2020-09-25 10:00:04,058 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 67 [2020-09-25 10:00:04,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:04,060 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2020-09-25 10:00:04,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 10:00:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2020-09-25 10:00:04,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 10:00:04,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:04,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-25 10:00:04,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:00:04,063 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:04,063 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 10:00:04,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:04,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773972955] [2020-09-25 10:00:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:05,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:06,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:06,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 10:00:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:00:09,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:09,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 10:00:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:09,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:09,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:09,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:09,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:09,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:12,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:12,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 10:00:14,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:00:14,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 10:00:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:14,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:14,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:00:14,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:14,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:00:14,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:14,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:14,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:14,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:14,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:14,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:14,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:14,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:14,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 10:00:14,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:00:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:00:14,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:14,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:14,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:14,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:00:14,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:14,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:14,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:14,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:14,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 10:00:14,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773972955] [2020-09-25 10:00:14,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:14,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:00:14,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583920721] [2020-09-25 10:00:14,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:00:14,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:14,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:00:14,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:00:14,479 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand 8 states. [2020-09-25 10:00:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:14,643 INFO L93 Difference]: Finished difference Result 100 states and 139 transitions. [2020-09-25 10:00:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:00:14,644 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-25 10:00:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:14,646 INFO L225 Difference]: With dead ends: 100 [2020-09-25 10:00:14,646 INFO L226 Difference]: Without dead ends: 94 [2020-09-25 10:00:14,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:00:14,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-25 10:00:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2020-09-25 10:00:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 10:00:14,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2020-09-25 10:00:14,660 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 69 [2020-09-25 10:00:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:14,660 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2020-09-25 10:00:14,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:00:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2020-09-25 10:00:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 10:00:14,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:14,663 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 10:00:14,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:00:14,664 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:14,664 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-25 10:00:14,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:14,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410987726] [2020-09-25 10:00:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:19,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 10:00:19,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 10:00:19,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:19,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:00:19,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:19,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:19,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:19,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:19,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:19,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:19,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:19,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:19,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:23,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:23,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:24,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 10:00:24,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 10:00:24,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 10:00:24,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:24,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:00:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 10:00:24,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:24,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:24,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:25,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 10:00:25,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:00:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1160 [2020-09-25 10:00:25,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:25,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:25,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:25,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:26,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:26,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:26,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 10:00:26,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:26,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:26,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:26,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:26,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:26,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:26,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:26,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:26,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:26,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:26,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:26,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:26,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:26,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:26,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:26,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:26,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:26,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:26,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:00:26,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:26,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:26,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:00:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 10:00:27,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:00:27,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1554 [2020-09-25 10:00:27,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 10:00:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:27,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:27,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 10:00:27,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:27,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:27,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:27,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:27,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:27,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:27,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:27,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:27,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:27,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:27,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:27,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:27,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:27,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:27,838 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 10:00:27,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410987726] [2020-09-25 10:00:27,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:27,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:00:27,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305132580] [2020-09-25 10:00:27,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:00:27,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:27,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:00:27,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:00:27,840 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand 11 states. [2020-09-25 10:00:28,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:28,297 INFO L93 Difference]: Finished difference Result 243 states and 435 transitions. [2020-09-25 10:00:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:00:28,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-09-25 10:00:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:28,303 INFO L225 Difference]: With dead ends: 243 [2020-09-25 10:00:28,303 INFO L226 Difference]: Without dead ends: 121 [2020-09-25 10:00:28,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:00:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-25 10:00:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2020-09-25 10:00:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 10:00:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 148 transitions. [2020-09-25 10:00:28,321 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 148 transitions. Word has length 101 [2020-09-25 10:00:28,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:28,322 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 148 transitions. [2020-09-25 10:00:28,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:00:28,322 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 148 transitions. [2020-09-25 10:00:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 10:00:28,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:28,324 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 10:00:28,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:00:28,325 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:28,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:28,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2103958142, now seen corresponding path program 1 times [2020-09-25 10:00:28,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:28,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808381256] [2020-09-25 10:00:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:33,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 10:00:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:33,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:33,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:33,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:33,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:33,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:33,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:33,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:33,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:34,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:34,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:35,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:35,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking...