/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:04:40,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:04:40,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:04:40,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:04:40,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:04:40,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:04:40,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:04:40,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:04:40,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:04:40,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:04:40,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:04:40,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:04:40,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:04:40,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:04:40,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:04:40,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:04:40,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:04:40,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:04:40,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:04:40,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:04:40,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:04:40,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:04:40,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:04:40,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:04:40,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:04:40,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:04:40,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:04:40,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:04:40,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:04:40,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:04:40,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:04:40,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:04:40,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:04:40,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:04:40,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:04:40,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:04:40,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:04:40,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:04:40,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:04:40,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:04:40,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:04:40,930 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 [2020-09-24 17:04:40,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:04:40,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:04:40,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:04:40,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:04:40,964 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:04:40,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:04:40,964 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:04:40,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:04:40,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:04:40,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:04:40,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:04:40,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:04:40,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:04:40,966 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:04:40,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:04:40,966 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:04:40,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:04:40,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:04:40,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:04:40,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:04:40,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:04:40,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:04:40,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:04:40,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:04:40,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:04:40,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:04:40,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:04:40,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:04:40,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:04:40,972 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;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;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;log-additional-information=true; [2020-09-24 17:04:41,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:04:41,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:04:41,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:04:41,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:04:41,474 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:04:41,476 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c [2020-09-24 17:04:41,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614789886/46dcc526eff94788a69ffeb2f28b437a/FLAGe8a548e7e [2020-09-24 17:04:42,101 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:04:42,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c [2020-09-24 17:04:42,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614789886/46dcc526eff94788a69ffeb2f28b437a/FLAGe8a548e7e [2020-09-24 17:04:42,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614789886/46dcc526eff94788a69ffeb2f28b437a [2020-09-24 17:04:42,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:04:42,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:04:42,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:04:42,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:04:42,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:04:42,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42, skipping insertion in model container [2020-09-24 17:04:42,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:04:42,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:04:42,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:04:42,756 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:04:42,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:04:42,793 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:04:42,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42 WrapperNode [2020-09-24 17:04:42,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:04:42,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:04:42,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:04:42,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:04:42,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (1/1) ... [2020-09-24 17:04:42,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:04:42,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:04:42,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:04:42,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:04:42,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (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 [2020-09-24 17:04:42,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:04:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:04:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 17:04:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:04:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:04:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:04:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 17:04:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:04:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:04:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:04:43,185 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:04:43,186 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:04:43,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:04:43 BoogieIcfgContainer [2020-09-24 17:04:43,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:04:43,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:04:43,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:04:43,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:04:43,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:04:42" (1/3) ... [2020-09-24 17:04:43,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e3b609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:04:43, skipping insertion in model container [2020-09-24 17:04:43,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:04:42" (2/3) ... [2020-09-24 17:04:43,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e3b609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:04:43, skipping insertion in model container [2020-09-24 17:04:43,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:04:43" (3/3) ... [2020-09-24 17:04:43,204 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i10_o10-2.c [2020-09-24 17:04:43,224 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:04:43,234 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:04:43,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:04:43,310 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:04:43,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:04:43,310 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:04:43,311 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:04:43,311 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:04:43,311 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:04:43,311 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:04:43,311 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:04:43,362 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-24 17:04:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 17:04:43,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:43,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:43,376 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:43,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:43,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-24 17:04:43,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:43,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509561441] [2020-09-24 17:04:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:43,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:43,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:04:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 17:04:43,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:04:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:04:43,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:43,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:43,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:43,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:43,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:04:43,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:43,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:43,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:43,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:43,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:43,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:43,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 17:04:43,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:04:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:04:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:04:43,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509561441] [2020-09-24 17:04:43,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:04:43,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:04:43,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743376168] [2020-09-24 17:04:43,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:04:43,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:43,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:04:43,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:04:43,744 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-24 17:04:43,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:43,847 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 17:04:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:04:43,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 17:04:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:43,863 INFO L225 Difference]: With dead ends: 37 [2020-09-24 17:04:43,863 INFO L226 Difference]: Without dead ends: 23 [2020-09-24 17:04:43,867 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 [2020-09-24 17:04:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-24 17:04:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-24 17:04:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-24 17:04:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-24 17:04:43,926 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-24 17:04:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:43,926 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-24 17:04:43,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:04:43,927 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-24 17:04:43,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 17:04:43,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:43,930 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:43,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:04:43,931 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:43,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:43,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-24 17:04:43,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:43,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251962706] [2020-09-24 17:04:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-24 17:04:44,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 17:04:44,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:04:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:04:44,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:44,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:44,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:04:44,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:44,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:44,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:44,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 17:04:44,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:04:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 17:04:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 17:04:44,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 17:04:44,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251962706] [2020-09-24 17:04:44,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:44,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 17:04:44,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946217798] [2020-09-24 17:04:44,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:04:44,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:44,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:04:44,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:04:44,417 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-24 17:04:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:44,491 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-24 17:04:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 17:04:44,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-24 17:04:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:44,493 INFO L225 Difference]: With dead ends: 34 [2020-09-24 17:04:44,494 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 17:04:44,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:04:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 17:04:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 17:04:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 17:04:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-24 17:04:44,503 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-24 17:04:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:44,504 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-24 17:04:44,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:04:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-24 17:04:44,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 17:04:44,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:44,506 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:44,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:04:44,507 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:44,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-24 17:04:44,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:44,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814558269] [2020-09-24 17:04:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 17:04:44,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-24 17:04:44,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:04:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:04:44,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,715 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:44,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:04:44,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:44,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:44,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:44,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:44,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:44,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-24 17:04:44,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:44,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:04:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 17:04:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:44,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:44,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:45,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 17:04:45,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:45,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:04:45,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:04:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 17:04:45,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814558269] [2020-09-24 17:04:45,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:45,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 17:04:45,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140956380] [2020-09-24 17:04:45,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:04:45,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:45,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:04:45,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:04:45,142 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-24 17:04:45,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:45,214 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 17:04:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:04:45,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-24 17:04:45,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:45,217 INFO L225 Difference]: With dead ends: 39 [2020-09-24 17:04:45,217 INFO L226 Difference]: Without dead ends: 33 [2020-09-24 17:04:45,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:04:45,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-24 17:04:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-24 17:04:45,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-24 17:04:45,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-24 17:04:45,225 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-24 17:04:45,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:45,225 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-24 17:04:45,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:04:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-24 17:04:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 17:04:45,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:45,228 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:45,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:04:45,228 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:45,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:45,229 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-24 17:04:45,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:45,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171636516] [2020-09-24 17:04:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 17:04:45,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-24 17:04:45,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 17:04:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 17:04:45,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:45,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:45,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:04:45,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:45,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:45,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:45,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-24 17:04:45,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 17:04:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 17:04:45,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:45,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:45,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 17:04:45,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:45,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:45,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:45,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:45,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:45,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 17:04:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:45,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:45,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:45,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:45,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:45,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:45,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:04:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 17:04:45,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171636516] [2020-09-24 17:04:45,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:45,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 17:04:45,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598723743] [2020-09-24 17:04:45,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:04:45,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:45,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:04:45,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:04:45,996 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 10 states. [2020-09-24 17:04:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:46,106 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-24 17:04:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:04:46,108 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-09-24 17:04:46,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:46,110 INFO L225 Difference]: With dead ends: 44 [2020-09-24 17:04:46,110 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 17:04:46,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-24 17:04:46,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 17:04:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 17:04:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 17:04:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 17:04:46,133 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-24 17:04:46,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:46,134 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 17:04:46,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:04:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 17:04:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 17:04:46,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:46,138 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:46,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:04:46,138 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:46,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:46,141 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-24 17:04:46,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:46,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549425960] [2020-09-24 17:04:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:46,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:46,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:46,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 17:04:46,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 17:04:46,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 17:04:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 17:04:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:46,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:46,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:46,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:46,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:46,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:46,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:04:46,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:46,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:46,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:46,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:46,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:04:46,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:46,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 17:04:46,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 17:04:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 17:04:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:46,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:46,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:46,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:46,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:46,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 17:04:46,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:04:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:04:46,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:46,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:47,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:47,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:47,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:47,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 17:04:47,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:47,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:47,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:47,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:47,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:47,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:47,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:47,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:47,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:47,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 17:04:47,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:47,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:47,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:47,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:47,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:47,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:47,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:04:47,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:47,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:47,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:47,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-24 17:04:47,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549425960] [2020-09-24 17:04:47,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:47,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 17:04:47,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268249955] [2020-09-24 17:04:47,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:04:47,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:47,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:04:47,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:04:47,154 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-24 17:04:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:47,257 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-24 17:04:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:04:47,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-24 17:04:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:47,260 INFO L225 Difference]: With dead ends: 49 [2020-09-24 17:04:47,260 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 17:04:47,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 17:04:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 17:04:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-24 17:04:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-24 17:04:47,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-24 17:04:47,270 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-24 17:04:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:47,270 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-24 17:04:47,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:04:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-24 17:04:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 17:04:47,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:47,273 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:47,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:04:47,273 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:47,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:47,274 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-24 17:04:47,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:47,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257117385] [2020-09-24 17:04:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:47,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:47,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:47,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 17:04:47,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:47,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-24 17:04:47,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 17:04:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:04:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:47,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:47,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:47,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:47,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:47,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:04:47,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:47,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:47,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:04:47,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 17:04:47,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 17:04:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 17:04:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:47,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:47,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:48,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:04:48,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-24 17:04:48,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:48,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:04:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:04:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:48,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:48,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:48,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:48,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:48,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 17:04:48,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:04:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:04:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:48,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:48,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:48,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:48,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:48,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 17:04:48,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:48,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:48,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:48,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:48,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:48,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:48,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 17:04:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:48,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:48,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:48,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:48,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:48,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:04:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:04:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-24 17:04:48,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257117385] [2020-09-24 17:04:48,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:48,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 17:04:48,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247235463] [2020-09-24 17:04:48,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 17:04:48,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:48,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 17:04:48,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:04:48,708 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 12 states. [2020-09-24 17:04:48,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:48,833 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-24 17:04:48,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:04:48,834 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-09-24 17:04:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:48,836 INFO L225 Difference]: With dead ends: 54 [2020-09-24 17:04:48,836 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 17:04:48,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2020-09-24 17:04:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 17:04:48,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-24 17:04:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 17:04:48,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-24 17:04:48,844 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-24 17:04:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:48,845 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-24 17:04:48,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 17:04:48,845 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-24 17:04:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 17:04:48,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:48,847 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:48,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:04:48,847 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:48,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:48,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-24 17:04:48,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:48,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402237648] [2020-09-24 17:04:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:48,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:49,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:49,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:04:49,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-24 17:04:49,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 17:04:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 17:04:49,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:49,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:49,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:49,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:49,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:04:49,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:49,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:04:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-24 17:04:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 17:04:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 17:04:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:49,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:49,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:49,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:49,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:04:49,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 17:04:49,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:04:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:04:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:49,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:50,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:50,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:04:50,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:50,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 17:04:50,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:04:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:04:50,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:50,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:50,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:50,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:50,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 17:04:50,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:04:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:04:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:50,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:50,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:50,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:50,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:50,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:50,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 17:04:50,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:50,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:50,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:50,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:50,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:50,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:50,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:50,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 17:04:50,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:50,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:50,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:50,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:50,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:50,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:04:50,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:50,626 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 5 proven. 105 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-24 17:04:50,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402237648] [2020-09-24 17:04:50,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:50,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 17:04:50,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718036706] [2020-09-24 17:04:50,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 17:04:50,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:50,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 17:04:50,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:04:50,629 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-24 17:04:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:50,765 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 17:04:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:04:50,766 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-24 17:04:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:50,767 INFO L225 Difference]: With dead ends: 59 [2020-09-24 17:04:50,768 INFO L226 Difference]: Without dead ends: 53 [2020-09-24 17:04:50,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-09-24 17:04:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-24 17:04:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-24 17:04:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 17:04:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-24 17:04:50,775 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-24 17:04:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:50,776 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-24 17:04:50,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 17:04:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-24 17:04:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 17:04:50,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:50,778 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:50,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:04:50,778 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:50,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:50,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-24 17:04:50,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:50,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779658457] [2020-09-24 17:04:50,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:51,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:51,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 17:04:51,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-24 17:04:51,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 17:04:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 17:04:51,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:51,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:51,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:51,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:51,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:51,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:04:51,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:51,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:51,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:51,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:51,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:51,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:04:51,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:51,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-24 17:04:51,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:51,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 17:04:51,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:51,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 17:04:51,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:51,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:52,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:52,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:04:52,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-24 17:04:52,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 17:04:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:52,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:04:52,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:52,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:52,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:52,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:04:52,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 17:04:52,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:04:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:04:52,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:52,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:52,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:52,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:52,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:04:52,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:52,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 17:04:52,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:04:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:52,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:04:52,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:52,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:52,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:52,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:52,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:52,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 17:04:52,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:04:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:04:52,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:52,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:52,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:53,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:53,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:53,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:53,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 17:04:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:53,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:53,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:53,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:53,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 17:04:53,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:53,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:53,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:53,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:53,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:53,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:53,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:04:53,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:53,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:53,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 10 proven. 136 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-24 17:04:53,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779658457] [2020-09-24 17:04:53,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:53,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 17:04:53,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600211609] [2020-09-24 17:04:53,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 17:04:53,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:53,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 17:04:53,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:04:53,152 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-24 17:04:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:53,299 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-24 17:04:53,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:04:53,300 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-24 17:04:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:53,302 INFO L225 Difference]: With dead ends: 64 [2020-09-24 17:04:53,302 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 17:04:53,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-24 17:04:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 17:04:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 17:04:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 17:04:53,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 17:04:53,310 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-24 17:04:53,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:53,311 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 17:04:53,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 17:04:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 17:04:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 17:04:53,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:53,312 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:53,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:04:53,313 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-24 17:04:53,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:53,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995044684] [2020-09-24 17:04:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:53,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:53,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:53,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 17:04:53,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-09-24 17:04:53,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 17:04:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 17:04:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:53,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:53,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:53,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:53,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:53,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:53,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:04:53,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:53,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:53,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:54,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:54,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:04:54,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-24 17:04:54,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 17:04:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 17:04:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:54,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:54,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:54,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:54,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:04:54,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:54,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-24 17:04:54,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:04:54,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:54,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:04:54,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:54,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:54,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:55,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:55,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:04:55,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-09-24 17:04:55,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 17:04:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:04:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:55,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:55,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:55,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:55,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:04:55,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 17:04:55,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:55,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:04:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:04:55,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:55,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:55,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:55,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:55,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:04:55,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 17:04:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:04:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:04:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:55,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:55,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:55,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:55,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 17:04:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:04:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:04:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:55,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:55,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:55,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 17:04:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:55,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:56,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:56,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 17:04:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:56,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:56,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:56,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:04:56,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 16 proven. 166 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-24 17:04:56,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995044684] [2020-09-24 17:04:56,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:56,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 17:04:56,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122216309] [2020-09-24 17:04:56,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 17:04:56,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:56,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 17:04:56,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 17:04:56,111 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 14 states. [2020-09-24 17:04:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:56,256 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-24 17:04:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 17:04:56,257 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-09-24 17:04:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:56,258 INFO L225 Difference]: With dead ends: 69 [2020-09-24 17:04:56,259 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 17:04:56,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-24 17:04:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 17:04:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-24 17:04:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 17:04:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-24 17:04:56,267 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-24 17:04:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:56,267 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-24 17:04:56,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 17:04:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-24 17:04:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-24 17:04:56,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:56,269 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:56,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:04:56,269 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-24 17:04:56,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:56,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619914530] [2020-09-24 17:04:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:56,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:56,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:56,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 17:04:56,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-09-24 17:04:56,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 17:04:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:04:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 17:04:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:56,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:04:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:56,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:56,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:56,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:04:56,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:56,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:04:56,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:04:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:56,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:04:56,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:56,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:04:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:56,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:57,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:57,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:04:57,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:57,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-24 17:04:57,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:57,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 17:04:57,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:04:57,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 17:04:57,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:57,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:57,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:58,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:58,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:04:58,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:58,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-09-24 17:04:58,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:58,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 17:04:58,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:04:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:58,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:58,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:58,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:58,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:04:58,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:58,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-09-24 17:04:58,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:04:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:04:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:58,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:58,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:58,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:58,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:04:58,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-24 17:04:58,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 17:04:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:04:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:58,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:04:59,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-24 17:04:59,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:04:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:04:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:59,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:59,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:59,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:04:59,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:59,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 17:04:59,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:04:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:59,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:04:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:59,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:59,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:59,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:04:59,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 17:04:59,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:04:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:04:59,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:59,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:59,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:59,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:59,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:04:59,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:59,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 17:04:59,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:59,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:04:59,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:59,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:04:59,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:04:59,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:59,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:59,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:04:59,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:59,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 17:04:59,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:59,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:04:59,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:59,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:04:59,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:59,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:04:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:04:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:04:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:04:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:04:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:04:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:04:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:04:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:04:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:04:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:04:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 33 proven. 210 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-24 17:04:59,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619914530] [2020-09-24 17:04:59,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:04:59,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 17:04:59,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048597971] [2020-09-24 17:04:59,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 17:04:59,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:04:59,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 17:04:59,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 17:04:59,741 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-24 17:04:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:04:59,900 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-24 17:04:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:04:59,901 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-24 17:04:59,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:04:59,902 INFO L225 Difference]: With dead ends: 74 [2020-09-24 17:04:59,902 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 17:04:59,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:04:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 17:04:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-24 17:04:59,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 17:04:59,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-24 17:04:59,910 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-24 17:04:59,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:04:59,910 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-24 17:04:59,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 17:04:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-24 17:04:59,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-24 17:04:59,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:04:59,912 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:04:59,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 17:04:59,912 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:04:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:04:59,913 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-24 17:04:59,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:04:59,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395489859] [2020-09-24 17:04:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:04:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:04:59,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:00,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:00,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-24 17:05:00,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-09-24 17:05:00,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 17:05:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-24 17:05:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 17:05:00,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:00,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:05:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:00,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:00,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:00,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:05:00,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:00,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:05:00,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:00,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:05:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:05:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:00,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:05:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:00,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:01,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:01,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 17:05:01,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:01,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-09-24 17:05:01,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:05:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 17:05:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:01,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:01,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:02,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:02,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:05:02,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-09-24 17:05:02,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 17:05:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 17:05:02,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:02,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:02,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:02,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:02,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:05:02,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-24 17:05:02,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:05:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 17:05:02,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:02,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:03,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:03,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:05:03,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-24 17:05:03,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 17:05:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 17:05:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:03,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:03,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:03,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:05:03,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-24 17:05:03,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:05:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 17:05:03,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:03,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:03,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:03,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:05:03,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:03,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-24 17:05:03,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:05:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 17:05:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:03,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:03,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:03,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:05:03,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:03,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 17:05:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:05:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 17:05:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:03,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:04,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:05:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 17:05:04,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:05:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 17:05:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:04,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:04,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:04,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:04,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:05:04,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:04,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 17:05:04,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:05:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 17:05:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:04,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:04,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:04,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:05:04,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:04,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:05:04,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:04,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:05:04,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:04,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:05:04,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:04,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:04,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:04,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:04,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:05:04,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:05:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:05:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:05:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 17:05:04,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395489859] [2020-09-24 17:05:04,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:05:04,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 17:05:04,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988947022] [2020-09-24 17:05:04,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 17:05:04,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:05:04,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 17:05:04,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:05:04,490 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-09-24 17:05:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:05:05,351 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 17:05:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 17:05:05,352 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-09-24 17:05:05,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:05:05,353 INFO L225 Difference]: With dead ends: 79 [2020-09-24 17:05:05,354 INFO L226 Difference]: Without dead ends: 73 [2020-09-24 17:05:05,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 17:05:05,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-24 17:05:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-24 17:05:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 17:05:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-24 17:05:05,367 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-24 17:05:05,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:05:05,367 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-24 17:05:05,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 17:05:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-24 17:05:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 17:05:05,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:05:05,369 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:05:05,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 17:05:05,370 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:05:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:05:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-24 17:05:05,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:05:05,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117946132] [2020-09-24 17:05:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:05:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:05,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-24 17:05:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:05:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1580 [2020-09-24 17:05:06,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 17:05:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:05:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 17:05:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:06,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:05:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:06,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:06,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:06,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:05:06,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:05:06,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:05:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:05:06,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:06,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 17:05:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:07,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:07,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:08,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:08,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 17:05:08,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:05:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1437 [2020-09-24 17:05:08,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 17:05:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:05:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 17:05:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:08,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:09,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:09,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 17:05:09,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:09,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-09-24 17:05:09,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 17:05:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 17:05:09,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:09,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:09,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:09,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:05:09,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-09-24 17:05:09,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:05:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 17:05:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:09,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:10,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:10,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:05:10,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:10,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-24 17:05:10,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 17:05:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:05:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:10,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:10,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:10,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:10,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:05:10,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-24 17:05:10,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:05:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:05:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:10,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:10,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:10,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:05:10,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 17:05:10,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 17:05:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:05:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:10,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:11,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:11,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:11,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:05:11,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:11,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:11,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:11,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:05:11,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 17:05:11,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:05:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:05:11,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:11,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:11,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:11,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:11,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:05:11,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 17:05:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:05:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:05:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:11,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:11,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:11,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:11,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:05:11,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 17:05:11,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:05:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:05:11,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:11,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:11,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:11,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:05:11,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:11,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 17:05:11,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:05:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:11,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:05:11,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:05:11,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:05:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:05:11,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:05:11,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:05:11,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:05:11,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:05:11,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:05:11,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:05:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:05:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:05:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:05:11,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:05:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 324 proven. 36 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-09-24 17:05:11,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117946132] [2020-09-24 17:05:11,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:05:11,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 17:05:11,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975859088] [2020-09-24 17:05:11,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 17:05:11,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:05:11,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 17:05:11,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:05:11,728 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-24 17:05:12,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:05:12,442 INFO L93 Difference]: Finished difference Result 151 states and 272 transitions. [2020-09-24 17:05:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 17:05:12,442 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-24 17:05:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:05:12,443 INFO L225 Difference]: With dead ends: 151 [2020-09-24 17:05:12,443 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:05:12,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=555, Unknown=0, NotChecked=0, Total=812 [2020-09-24 17:05:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:05:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:05:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:05:12,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:05:12,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-09-24 17:05:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:05:12,448 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:05:12,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 17:05:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:05:12,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:05:12,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 17:05:12,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:05:12,623 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 17:05:12,623 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:05:12,623 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:05:12,624 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 17:05:12,624 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:05:12,624 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:05:12,624 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-09-24 17:05:12,624 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-09-24 17:05:12,624 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-24 17:05:12,625 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 17:05:12,625 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-09-24 17:05:12,625 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= 10 main_~input~0) (<= main_~input~0 10)) [2020-09-24 17:05:12,625 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 17:05:12,625 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-09-24 17:05:12,625 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 17:05:12,626 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-24 17:05:12,626 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-24 17:05:12,626 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-24 17:05:12,626 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-09-24 17:05:12,626 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |id_#in~x| id_~x) [2020-09-24 17:05:12,626 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 17:05:12,626 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 17:05:12,626 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 17:05:12,627 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-24 17:05:12,627 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-24 17:05:12,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:05:12 BoogieIcfgContainer [2020-09-24 17:05:12,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:05:12,646 INFO L168 Benchmark]: Toolchain (without parser) took 30167.11 ms. Allocated memory was 145.8 MB in the beginning and 442.0 MB in the end (delta: 296.2 MB). Free memory was 101.2 MB in the beginning and 137.9 MB in the end (delta: -36.7 MB). Peak memory consumption was 259.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:05:12,649 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 17:05:12,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.83 ms. Allocated memory is still 145.8 MB. Free memory was 100.5 MB in the beginning and 90.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-24 17:05:12,652 INFO L168 Benchmark]: Boogie Preprocessor took 31.06 ms. Allocated memory is still 145.8 MB. Free memory was 90.9 MB in the beginning and 89.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:05:12,653 INFO L168 Benchmark]: RCFGBuilder took 365.30 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 89.5 MB in the beginning and 169.2 MB in the end (delta: -79.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:05:12,657 INFO L168 Benchmark]: TraceAbstraction took 29444.03 ms. Allocated memory was 201.3 MB in the beginning and 442.0 MB in the end (delta: 240.6 MB). Free memory was 168.5 MB in the beginning and 137.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 271.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:05:12,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.83 ms. Allocated memory is still 145.8 MB. Free memory was 100.5 MB in the beginning and 90.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.06 ms. Allocated memory is still 145.8 MB. Free memory was 90.9 MB in the beginning and 89.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 365.30 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 89.5 MB in the beginning and 169.2 MB in the end (delta: -79.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29444.03 ms. Allocated memory was 201.3 MB in the beginning and 442.0 MB in the end (delta: 240.6 MB). Free memory was 168.5 MB in the beginning and 137.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 271.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.1s, OverallIterations: 12, TraceHistogramMax: 12, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 665 SDslu, 1812 SDs, 0 SdLazy, 1492 SolverSat, 160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 29 PreInvPairs, 29 NumberOfFragments, 15 HoareAnnotationTreeSize, 29 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.6s InterpolantComputationTime, 720 NumberOfCodeBlocks, 720 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 145648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 985/2024 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...