/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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/sum_15x0-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:32:28,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:32:28,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:32:28,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:32:28,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:32:28,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:32:28,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:32:28,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:32:28,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:32:28,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:32:28,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:32:28,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:32:28,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:32:28,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:32:28,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:32:28,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:32:28,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:32:28,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:32:28,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:32:28,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:32:28,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:32:28,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:32:28,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:32:28,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:32:28,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:32:28,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:32:28,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:32:28,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:32:28,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:32:28,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:32:28,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:32:28,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:32:28,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:32:28,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:32:28,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:32:28,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:32:28,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:32:28,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:32:28,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:32:28,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:32:28,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:32:28,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:32:28,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:32:28,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:32:28,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:32:28,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:32:28,732 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:32:28,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:32:28,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:32:28,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:32:28,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:32:28,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:32:28,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:32:28,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:32:28,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:32:28,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:32:28,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:32:28,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:32:28,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:32:28,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:32:28,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:32:28,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:32:28,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:32:28,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:32:28,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:32:28,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:32:28,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:32:28,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:32:28,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:32:28,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:32:28,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:32:28,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:32:29,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:32:29,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:32:29,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:32:29,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:32:29,203 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:32:29,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_15x0-2.c [2020-09-25 14:32:29,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/353efb374/347fb711d63c45f08336d38a66bcde65/FLAG69423d1a9 [2020-09-25 14:32:29,776 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:32:29,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_15x0-2.c [2020-09-25 14:32:29,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/353efb374/347fb711d63c45f08336d38a66bcde65/FLAG69423d1a9 [2020-09-25 14:32:30,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/353efb374/347fb711d63c45f08336d38a66bcde65 [2020-09-25 14:32:30,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:32:30,153 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:32:30,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:32:30,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:32:30,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:32:30,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130b43e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30, skipping insertion in model container [2020-09-25 14:32:30,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:32:30,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:32:30,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:32:30,442 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:32:30,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:32:30,480 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:32:30,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30 WrapperNode [2020-09-25 14:32:30,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:32:30,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:32:30,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:32:30,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:32:30,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... [2020-09-25 14:32:30,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:32:30,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:32:30,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:32:30,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:32:30,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:32:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:32:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:32:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-25 14:32:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:32:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:32:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-25 14:32:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:32:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:32:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:32:30,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:32:30,867 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:32:30,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:32:30 BoogieIcfgContainer [2020-09-25 14:32:30,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:32:30,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:32:30,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:32:30,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:32:30,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:32:30" (1/3) ... [2020-09-25 14:32:30,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b7eb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:32:30, skipping insertion in model container [2020-09-25 14:32:30,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:32:30" (2/3) ... [2020-09-25 14:32:30,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b7eb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:32:30, skipping insertion in model container [2020-09-25 14:32:30,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:32:30" (3/3) ... [2020-09-25 14:32:30,885 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_15x0-2.c [2020-09-25 14:32:30,896 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:32:30,906 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:32:30,926 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:32:30,954 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:32:30,955 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:32:30,955 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:32:30,955 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:32:30,955 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:32:30,956 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:32:30,956 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:32:30,956 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:32:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 14:32:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 14:32:30,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:30,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:30,987 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:30,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:30,994 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-25 14:32:31,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:31,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103903054] [2020-09-25 14:32:31,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:31,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:32:31,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:31,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 14:32:31,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:31,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:31,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:32:31,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:31,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:31,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:32:31,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:31,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:31,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:32:31,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:31,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:31,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:31,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:31,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:31,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:32:31,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:31,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:32:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:31,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:32:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:32:31,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103903054] [2020-09-25 14:32:31,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:32:31,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:32:31,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901275946] [2020-09-25 14:32:31,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:32:31,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:31,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:32:31,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:32:31,515 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-25 14:32:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:31,717 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-25 14:32:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:32:31,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 14:32:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:31,733 INFO L225 Difference]: With dead ends: 39 [2020-09-25 14:32:31,733 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 14:32:31,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:32:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 14:32:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 14:32:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 14:32:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-25 14:32:31,794 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-25 14:32:31,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:31,794 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-25 14:32:31,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:32:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-25 14:32:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 14:32:31,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:31,797 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:31,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:32:31,798 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:31,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:31,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-25 14:32:31,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:31,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290430414] [2020-09-25 14:32:31,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 14:32:32,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:32,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-25 14:32:32,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:32:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:32:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:32:32,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:32,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:32:32,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:32,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:32:32,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:32,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 14:32:32,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:32:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:32:32,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:32,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 14:32:32,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:32,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 14:32:32,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290430414] [2020-09-25 14:32:32,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:32,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:32:32,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351096501] [2020-09-25 14:32:32,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:32:32,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:32,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:32:32,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:32:32,607 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2020-09-25 14:32:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:32,669 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-25 14:32:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:32:32,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-25 14:32:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:32,672 INFO L225 Difference]: With dead ends: 36 [2020-09-25 14:32:32,672 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 14:32:32,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:32:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 14:32:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 14:32:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 14:32:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 14:32:32,681 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-25 14:32:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:32,681 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 14:32:32,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:32:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 14:32:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 14:32:32,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:32,683 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:32,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:32:32,684 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:32,684 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-25 14:32:32,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:32,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918185909] [2020-09-25 14:32:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:33,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:33,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 14:32:33,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 14:32:33,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:33,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:32:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:33,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:33,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:33,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:33,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:33,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:33,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:33,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:33,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:33,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:32:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 14:32:33,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:33,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:32:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:32:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:33,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:33,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:33,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:33,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:33,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 14:32:33,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:33,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:33,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:33,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:33,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:33,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:33,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:33,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:32:33,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:33,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 14:32:33,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918185909] [2020-09-25 14:32:33,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:33,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:32:33,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056806494] [2020-09-25 14:32:33,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:32:33,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:33,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:32:33,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:32:33,499 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-09-25 14:32:33,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:33,577 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 14:32:33,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:32:33,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-09-25 14:32:33,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:33,579 INFO L225 Difference]: With dead ends: 41 [2020-09-25 14:32:33,580 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 14:32:33,580 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 [2020-09-25 14:32:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 14:32:33,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 14:32:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 14:32:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-25 14:32:33,588 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-25 14:32:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:33,589 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-25 14:32:33,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:32:33,589 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-25 14:32:33,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 14:32:33,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:33,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:33,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:32:33,592 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:33,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:33,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-25 14:32:33,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:33,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854138011] [2020-09-25 14:32:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:33,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:33,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 14:32:34,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-09-25 14:32:34,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:32:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 14:32:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:34,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:34,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:34,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:34,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:32:34,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 14:32:34,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:32:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 14:32:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:34,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:32:34,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 14:32:34,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:32:34,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:34,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:34,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:32:34,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:34,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:34,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 14:32:34,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:34,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:34,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:34,863 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 14:32:34,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854138011] [2020-09-25 14:32:34,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:34,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:32:34,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235676689] [2020-09-25 14:32:34,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:32:34,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:34,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:32:34,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:32:34,869 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states. [2020-09-25 14:32:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:34,981 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-25 14:32:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:32:34,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-09-25 14:32:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:34,985 INFO L225 Difference]: With dead ends: 46 [2020-09-25 14:32:34,985 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 14:32:34,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:32:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 14:32:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 14:32:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 14:32:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-25 14:32:35,001 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-25 14:32:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:35,001 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-25 14:32:35,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:32:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-25 14:32:35,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 14:32:35,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:35,005 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:35,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:32:35,006 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:35,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:35,007 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-25 14:32:35,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:35,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434446257] [2020-09-25 14:32:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:35,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:36,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:36,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:36,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1966 [2020-09-25 14:32:36,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:36,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:32:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 14:32:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:37,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:37,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:32:37,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:37,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:32:37,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 14:32:37,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:32:37,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:37,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 14:32:37,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:37,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:32:37,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-25 14:32:37,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:32:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:32:37,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 14:32:37,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:32:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 14:32:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:37,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:37,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:32:37,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:37,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 14:32:37,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434446257] [2020-09-25 14:32:37,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:37,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:32:37,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925189804] [2020-09-25 14:32:37,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:32:37,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:37,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:32:37,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:32:37,886 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2020-09-25 14:32:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:37,999 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 14:32:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:32:37,999 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-25 14:32:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:38,001 INFO L225 Difference]: With dead ends: 51 [2020-09-25 14:32:38,001 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 14:32:38,004 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 [2020-09-25 14:32:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 14:32:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 14:32:38,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 14:32:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-25 14:32:38,016 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-25 14:32:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:38,017 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-25 14:32:38,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:32:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-25 14:32:38,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 14:32:38,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:38,019 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:38,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:32:38,021 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:38,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-25 14:32:38,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:38,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202005550] [2020-09-25 14:32:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:38,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:41,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:41,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 14:32:41,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:41,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3753 [2020-09-25 14:32:41,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:41,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:41,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:32:41,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:41,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:41,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:41,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:41,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:41,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:41,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:41,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:41,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:41,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 14:32:42,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 14:32:42,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:32:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:32:42,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:32:42,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 14:32:42,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:32:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:42,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:32:42,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 14:32:42,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:32:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:42,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:32:42,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 14:32:42,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:32:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:42,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:42,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 14:32:42,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:42,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:42,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:32:42,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:42,785 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 12 proven. 70 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 14:32:42,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202005550] [2020-09-25 14:32:42,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:42,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 14:32:42,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361396414] [2020-09-25 14:32:42,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:32:42,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:42,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:32:42,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:32:42,788 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states. [2020-09-25 14:32:42,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:42,904 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-25 14:32:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:32:42,904 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-25 14:32:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:42,906 INFO L225 Difference]: With dead ends: 56 [2020-09-25 14:32:42,906 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 14:32:42,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:32:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 14:32:42,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 14:32:42,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 14:32:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 14:32:42,914 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-25 14:32:42,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:42,914 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 14:32:42,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:32:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 14:32:42,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 14:32:42,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:42,916 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:42,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:32:42,917 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:42,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:42,917 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-25 14:32:42,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:42,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003622398] [2020-09-25 14:32:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:43,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:46,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:46,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 14:32:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3884 [2020-09-25 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 14:32:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:46,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:46,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:46,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:46,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:46,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:46,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:46,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:47,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:47,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:32:47,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 14:32:47,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:47,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:32:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:32:47,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:47,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:47,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:47,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:47,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 14:32:47,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 14:32:47,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:47,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:32:47,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:47,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:47,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:47,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:47,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:32:47,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:47,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 14:32:47,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:47,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:32:47,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:47,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:47,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:47,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:32:47,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 14:32:47,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:47,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:32:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:47,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:48,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:48,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:32:48,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:48,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 14:32:48,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:48,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:48,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:48,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:48,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:32:48,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:48,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:48,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:48,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:48,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:48,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:48,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 14:32:48,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:48,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:48,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:48,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:48,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:48,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:48,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:48,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:48,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:48,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:48,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:48,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:32:48,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:48,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:48,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 12 proven. 108 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-09-25 14:32:48,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003622398] [2020-09-25 14:32:48,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:48,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 14:32:48,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021051517] [2020-09-25 14:32:48,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:32:48,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:48,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:32:48,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:32:48,206 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states. [2020-09-25 14:32:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:48,341 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-25 14:32:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:32:48,341 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-09-25 14:32:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:48,345 INFO L225 Difference]: With dead ends: 61 [2020-09-25 14:32:48,345 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 14:32:48,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:32:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 14:32:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-25 14:32:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 14:32:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-25 14:32:48,359 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-25 14:32:48,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:48,360 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-25 14:32:48,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:32:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-25 14:32:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 14:32:48,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:48,363 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:48,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:32:48,363 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:48,365 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-25 14:32:48,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:48,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667780992] [2020-09-25 14:32:48,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:48,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:48,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:53,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:53,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 14:32:53,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:32:53,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 14:32:53,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:53,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:32:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:32:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:53,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:53,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:53,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:53,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:53,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:53,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:53,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:53,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:53,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:53,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:53,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:53,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:53,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:32:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:53,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:53,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:53,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 14:32:53,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:53,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-09-25 14:32:53,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:53,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:32:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 14:32:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:53,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:53,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:32:54,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 14:32:54,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:32:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:54,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 14:32:54,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 14:32:54,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:54,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:32:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:54,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:54,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:54,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:32:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:54,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:32:54,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 14:32:54,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:32:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:54,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:54,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:32:54,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 14:32:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:32:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:54,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:54,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:32:54,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 14:32:54,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:32:54,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:54,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:32:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:54,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:54,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:32:54,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:54,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:32:54,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:54,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:32:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 28 proven. 131 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-25 14:32:55,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667780992] [2020-09-25 14:32:55,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:55,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 14:32:55,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257225872] [2020-09-25 14:32:55,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:32:55,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:55,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:32:55,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:32:55,037 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 13 states. [2020-09-25 14:32:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:55,180 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-25 14:32:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:32:55,181 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-25 14:32:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:55,182 INFO L225 Difference]: With dead ends: 66 [2020-09-25 14:32:55,182 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 14:32:55,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 14:32:55,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 14:32:55,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 14:32:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 14:32:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-25 14:32:55,190 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-25 14:32:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:55,190 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-25 14:32:55,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:32:55,191 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-25 14:32:55,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 14:32:55,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:55,192 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:55,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:32:55,193 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:55,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:55,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-25 14:32:55,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:55,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3398500] [2020-09-25 14:32:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:55,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:55,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:00,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 14:33:00,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:33:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:33:00,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:00,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:33:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:33:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 14:33:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:00,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:00,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:00,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:00,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:00,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:00,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:00,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:00,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:00,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:33:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:00,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:00,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 14:33:00,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:00,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-09-25 14:33:00,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:00,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:33:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:33:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 14:33:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:00,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:00,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:01,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:01,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 14:33:01,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:01,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-25 14:33:01,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:01,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:33:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 14:33:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:01,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:01,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:01,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:33:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 14:33:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:01,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:33:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:33:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:01,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:01,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:01,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:01,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 14:33:01,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:01,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 14:33:01,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:01,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:01,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:33:01,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:33:01,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:01,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:01,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:01,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:01,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:33:01,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 14:33:01,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:01,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:33:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:33:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:01,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:02,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:02,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:33:02,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 14:33:02,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:02,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:33:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:33:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:02,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:02,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:02,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:02,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:33:02,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 14:33:02,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:02,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:33:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:33:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:02,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:02,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:02,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:02,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:33:02,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 14:33:02,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:02,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:33:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:33:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:02,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:02,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:33:02,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:33:02,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:02,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:33:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:33:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 15 proven. 197 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 14:33:02,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3398500] [2020-09-25 14:33:02,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:33:02,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 14:33:02,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246199584] [2020-09-25 14:33:02,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:33:02,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:02,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:33:02,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:33:02,275 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 14 states. [2020-09-25 14:33:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:02,475 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 14:33:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:33:02,475 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90 [2020-09-25 14:33:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:02,477 INFO L225 Difference]: With dead ends: 71 [2020-09-25 14:33:02,478 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 14:33:02,479 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 [2020-09-25 14:33:02,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 14:33:02,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-25 14:33:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 14:33:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-25 14:33:02,490 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90 [2020-09-25 14:33:02,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:02,490 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-25 14:33:02,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 14:33:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-25 14:33:02,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 14:33:02,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:02,492 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:33:02,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:33:02,493 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:02,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:02,493 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times [2020-09-25 14:33:02,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:02,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674713854] [2020-09-25 14:33:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:02,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:02,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:07,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:07,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 14:33:07,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:33:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:33:07,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:07,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 14:33:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:33:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:33:07,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:07,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:07,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:07,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:07,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:33:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:07,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:08,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:33:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 14:33:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:08,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:08,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:08,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:08,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 14:33:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:08,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:08,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:08,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:08,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 14:33:08,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:08,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-25 14:33:08,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:08,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:08,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:33:08,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:08,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 14:33:08,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:08,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:09,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:09,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:33:09,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:09,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 14:33:09,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:09,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:33:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:33:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:09,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:09,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:09,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:09,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 14:33:09,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:33:09,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:09,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:09,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:33:09,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:09,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 14:33:09,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:09,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:33:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:33:09,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:09,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:09,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:09,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:33:09,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:09,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 14:33:09,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:09,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:33:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:33:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:09,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:09,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:09,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:33:09,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:09,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 14:33:09,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:09,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:09,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:33:09,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:09,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:33:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:09,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:09,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:09,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:09,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:33:09,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 14:33:09,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:09,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:33:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:33:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:10,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:33:10,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:33:10,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:10,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:33:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:33:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 33 proven. 225 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-09-25 14:33:10,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674713854] [2020-09-25 14:33:10,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:33:10,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 14:33:10,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334578552] [2020-09-25 14:33:10,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 14:33:10,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:10,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 14:33:10,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:33:10,112 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states. [2020-09-25 14:33:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:10,272 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-25 14:33:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:33:10,273 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-09-25 14:33:10,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:10,274 INFO L225 Difference]: With dead ends: 76 [2020-09-25 14:33:10,274 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 14:33:10,275 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 [2020-09-25 14:33:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 14:33:10,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 14:33:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 14:33:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 14:33:10,285 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99 [2020-09-25 14:33:10,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:10,287 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 14:33:10,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 14:33:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 14:33:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-25 14:33:10,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:10,288 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:33:10,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:33:10,289 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:10,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:10,289 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times [2020-09-25 14:33:10,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:10,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284592413] [2020-09-25 14:33:10,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:10,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:15,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:15,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 14:33:15,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:33:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:33:15,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:15,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 14:33:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:33:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:33:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:15,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:15,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:15,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:15,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:15,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:15,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:15,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:15,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:33:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:15,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:15,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:15,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 14:33:15,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-25 14:33:15,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:15,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 14:33:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:33:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 14:33:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:16,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:16,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:33:16,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:16,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-25 14:33:16,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:16,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:33:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:33:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:16,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:17,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:33:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:17,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 14:33:17,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:17,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:17,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:17,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:17,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 14:33:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:17,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:17,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:33:17,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 14:33:17,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:17,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:33:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:33:17,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:17,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:17,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:18,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:18,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 14:33:18,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:18,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 14:33:18,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:18,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:18,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:33:18,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:18,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:33:18,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:18,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:18,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:18,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 14:33:18,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:18,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 14:33:18,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:18,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:33:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:33:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:18,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:18,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:18,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:18,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:33:18,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:18,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 14:33:18,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:18,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:33:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:33:18,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:18,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:18,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:18,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:33:18,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:18,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 14:33:18,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:18,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:33:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:33:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:18,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:18,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:18,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:18,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:33:18,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:18,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 14:33:18,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:18,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:33:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:18,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:33:18,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:18,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:18,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:18,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:18,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:33:18,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:18,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:33:18,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:18,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:33:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:33:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 18 proven. 296 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-09-25 14:33:18,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284592413] [2020-09-25 14:33:18,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:33:18,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 14:33:18,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795714884] [2020-09-25 14:33:18,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 14:33:18,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:18,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 14:33:18,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:33:18,814 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 16 states. [2020-09-25 14:33:19,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:19,055 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-25 14:33:19,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:33:19,055 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2020-09-25 14:33:19,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:19,057 INFO L225 Difference]: With dead ends: 81 [2020-09-25 14:33:19,057 INFO L226 Difference]: Without dead ends: 75 [2020-09-25 14:33:19,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 14:33:19,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-25 14:33:19,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-25 14:33:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 14:33:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-25 14:33:19,070 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 108 [2020-09-25 14:33:19,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:19,070 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-25 14:33:19,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 14:33:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-25 14:33:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-25 14:33:19,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:19,072 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:33:19,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 14:33:19,072 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:19,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1749540651, now seen corresponding path program 11 times [2020-09-25 14:33:19,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:19,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636943283] [2020-09-25 14:33:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:19,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:24,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:24,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-25 14:33:24,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:33:24,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 14:33:24,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:24,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 14:33:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:33:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:33:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:24,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:24,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:24,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:24,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:33:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:24,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:24,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:24,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:33:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:24,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 807 [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 14:33:24,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:33:24,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 14:33:24,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:25,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:25,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 14:33:25,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:25,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-09-25 14:33:25,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:25,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 14:33:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 14:33:25,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:33:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:33:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking...