/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/heapsort.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:05:39,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:05:39,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:05:39,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:05:39,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:05:39,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:05:39,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:05:39,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:05:39,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:05:39,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:05:39,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:05:39,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:05:39,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:05:39,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:05:39,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:05:39,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:05:39,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:05:39,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:05:39,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:05:39,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:05:39,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:05:39,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:05:39,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:05:39,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:05:39,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:05:39,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:05:39,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:05:39,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:05:39,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:05:39,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:05:39,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:05:39,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:05:39,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:05:39,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:05:39,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:05:39,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:05:39,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:05:39,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:05:39,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:05:39,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:05:39,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:05:39,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 16:05:39,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:05:39,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:05:39,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:05:39,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:05:39,624 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:05:39,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:05:39,625 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:05:39,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:05:39,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:05:39,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:05:39,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:05:39,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:05:39,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:05:39,626 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:05:39,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:05:39,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:05:39,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:05:39,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:05:39,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:05:39,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:05:39,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:05:39,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:05:39,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:05:39,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:05:39,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:05:39,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:05:39,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:05:39,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:05:39,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:05:39,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 16:05:39,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:05:39,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:05:39,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:05:39,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:05:39,964 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:05:39,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/heapsort.i [2020-10-12 16:05:40,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a259a7a56/b9d13002bbde4c8b9554233fc0f22e37/FLAGb69a142ca [2020-10-12 16:05:40,466 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:05:40,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/heapsort.i [2020-10-12 16:05:40,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a259a7a56/b9d13002bbde4c8b9554233fc0f22e37/FLAGb69a142ca [2020-10-12 16:05:40,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a259a7a56/b9d13002bbde4c8b9554233fc0f22e37 [2020-10-12 16:05:40,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:05:40,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:05:40,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:05:40,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:05:40,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:05:40,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:05:40" (1/1) ... [2020-10-12 16:05:40,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241ec169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:40, skipping insertion in model container [2020-10-12 16:05:40,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:05:40" (1/1) ... [2020-10-12 16:05:40,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:05:40,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:05:41,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:05:41,243 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:05:41,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:05:41,287 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:05:41,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41 WrapperNode [2020-10-12 16:05:41,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:05:41,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:05:41,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:05:41,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:05:41,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... [2020-10-12 16:05:41,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:05:41,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:05:41,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:05:41,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:05:41,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:05:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:05:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:05:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 16:05:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 16:05:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:05:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:05:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 16:05:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 16:05:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 16:05:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 16:05:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:05:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:05:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:05:41,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:05:41,738 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-12 16:05:41,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:05:41 BoogieIcfgContainer [2020-10-12 16:05:41,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:05:41,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:05:41,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:05:41,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:05:41,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:05:40" (1/3) ... [2020-10-12 16:05:41,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392fc8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:05:41, skipping insertion in model container [2020-10-12 16:05:41,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:41" (2/3) ... [2020-10-12 16:05:41,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392fc8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:05:41, skipping insertion in model container [2020-10-12 16:05:41,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:05:41" (3/3) ... [2020-10-12 16:05:41,752 INFO L109 eAbstractionObserver]: Analyzing ICFG heapsort.i [2020-10-12 16:05:41,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:05:41,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 16:05:41,811 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 16:05:41,842 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:05:41,843 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:05:41,843 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:05:41,843 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:05:41,843 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:05:41,843 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:05:41,843 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:05:41,844 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:05:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-12 16:05:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 16:05:41,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:41,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:41,892 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:41,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1398272466, now seen corresponding path program 1 times [2020-10-12 16:05:41,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:41,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176528131] [2020-10-12 16:05:41,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:42,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:42,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:42,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:42,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:42,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:42,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 16:05:42,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:05:42,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-12 16:05:42,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:05:42,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 16:05:42,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 16:05:42,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:42,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:42,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:42,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:42,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:42,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:42,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:42,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176528131] [2020-10-12 16:05:42,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:42,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:05:42,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523949169] [2020-10-12 16:05:42,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:05:42,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:42,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:05:42,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:05:42,679 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2020-10-12 16:05:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:43,207 INFO L93 Difference]: Finished difference Result 192 states and 394 transitions. [2020-10-12 16:05:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:43,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-12 16:05:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:43,224 INFO L225 Difference]: With dead ends: 192 [2020-10-12 16:05:43,225 INFO L226 Difference]: Without dead ends: 139 [2020-10-12 16:05:43,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-12 16:05:43,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 83. [2020-10-12 16:05:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-12 16:05:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 136 transitions. [2020-10-12 16:05:43,325 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 136 transitions. Word has length 14 [2020-10-12 16:05:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:43,325 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 136 transitions. [2020-10-12 16:05:43,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:05:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 136 transitions. [2020-10-12 16:05:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 16:05:43,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:43,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:43,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:05:43,332 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:43,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:43,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1431966087, now seen corresponding path program 1 times [2020-10-12 16:05:43,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:43,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430846822] [2020-10-12 16:05:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:43,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:43,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:43,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:43,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:43,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 16:05:43,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:43,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-12 16:05:43,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:05:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:05:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:43,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:43,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:43,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:43,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:43,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:43,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:43,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:43,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430846822] [2020-10-12 16:05:43,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:43,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:43,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034109173] [2020-10-12 16:05:43,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:43,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:43,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:43,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:43,683 INFO L87 Difference]: Start difference. First operand 83 states and 136 transitions. Second operand 6 states. [2020-10-12 16:05:43,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:43,891 INFO L93 Difference]: Finished difference Result 160 states and 265 transitions. [2020-10-12 16:05:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:05:43,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-12 16:05:43,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:43,895 INFO L225 Difference]: With dead ends: 160 [2020-10-12 16:05:43,895 INFO L226 Difference]: Without dead ends: 158 [2020-10-12 16:05:43,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-12 16:05:43,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 138. [2020-10-12 16:05:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-12 16:05:43,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 232 transitions. [2020-10-12 16:05:43,939 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 232 transitions. Word has length 14 [2020-10-12 16:05:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:43,940 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 232 transitions. [2020-10-12 16:05:43,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 232 transitions. [2020-10-12 16:05:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 16:05:43,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:43,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:43,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:05:43,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1419721986, now seen corresponding path program 1 times [2020-10-12 16:05:43,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:43,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236780240] [2020-10-12 16:05:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:43,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:44,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 16:05:44,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:44,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 16:05:44,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:44,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:05:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:05:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:44,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:44,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:44,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236780240] [2020-10-12 16:05:44,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:44,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:44,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303480213] [2020-10-12 16:05:44,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:44,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:44,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:44,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:44,093 INFO L87 Difference]: Start difference. First operand 138 states and 232 transitions. Second operand 6 states. [2020-10-12 16:05:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:44,322 INFO L93 Difference]: Finished difference Result 272 states and 459 transitions. [2020-10-12 16:05:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:44,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-12 16:05:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:44,326 INFO L225 Difference]: With dead ends: 272 [2020-10-12 16:05:44,326 INFO L226 Difference]: Without dead ends: 270 [2020-10-12 16:05:44,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-12 16:05:44,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 261. [2020-10-12 16:05:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-12 16:05:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 444 transitions. [2020-10-12 16:05:44,384 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 444 transitions. Word has length 14 [2020-10-12 16:05:44,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:44,384 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 444 transitions. [2020-10-12 16:05:44,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:44,385 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 444 transitions. [2020-10-12 16:05:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 16:05:44,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:44,387 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:44,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:05:44,388 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:44,388 INFO L82 PathProgramCache]: Analyzing trace with hash -215332396, now seen corresponding path program 1 times [2020-10-12 16:05:44,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:44,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896648692] [2020-10-12 16:05:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:44,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:44,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:05:44,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:05:44,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 16:05:44,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:44,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:44,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:05:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:05:44,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:44,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:44,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:44,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:44,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:44,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:44,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:44,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:44,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:44,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:44,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:44,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:44,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:44,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:44,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:44,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:44,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:44,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896648692] [2020-10-12 16:05:44,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:44,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:05:44,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717653350] [2020-10-12 16:05:44,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:44,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:44,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:44,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:44,558 INFO L87 Difference]: Start difference. First operand 261 states and 444 transitions. Second operand 7 states. [2020-10-12 16:05:44,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:44,874 INFO L93 Difference]: Finished difference Result 492 states and 849 transitions. [2020-10-12 16:05:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:05:44,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-12 16:05:44,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:44,879 INFO L225 Difference]: With dead ends: 492 [2020-10-12 16:05:44,879 INFO L226 Difference]: Without dead ends: 490 [2020-10-12 16:05:44,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:44,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-12 16:05:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 446. [2020-10-12 16:05:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-12 16:05:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 783 transitions. [2020-10-12 16:05:44,944 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 783 transitions. Word has length 19 [2020-10-12 16:05:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:44,945 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 783 transitions. [2020-10-12 16:05:44,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 783 transitions. [2020-10-12 16:05:44,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 16:05:44,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:44,946 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:44,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:05:44,947 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:44,947 INFO L82 PathProgramCache]: Analyzing trace with hash -960320661, now seen corresponding path program 1 times [2020-10-12 16:05:44,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:44,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323657399] [2020-10-12 16:05:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:05:45,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:05:45,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-12 16:05:45,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:05:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:05:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:45,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:45,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:45,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:45,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:45,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:45,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:05:45,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:45,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 16:05:45,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:45,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:45,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323657399] [2020-10-12 16:05:45,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:45,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:45,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589938435] [2020-10-12 16:05:45,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:45,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:45,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:45,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:45,221 INFO L87 Difference]: Start difference. First operand 446 states and 783 transitions. Second operand 6 states. [2020-10-12 16:05:45,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:45,403 INFO L93 Difference]: Finished difference Result 535 states and 921 transitions. [2020-10-12 16:05:45,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:45,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-12 16:05:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:45,410 INFO L225 Difference]: With dead ends: 535 [2020-10-12 16:05:45,410 INFO L226 Difference]: Without dead ends: 407 [2020-10-12 16:05:45,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-10-12 16:05:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2020-10-12 16:05:45,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-12 16:05:45,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 712 transitions. [2020-10-12 16:05:45,457 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 712 transitions. Word has length 19 [2020-10-12 16:05:45,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:45,457 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 712 transitions. [2020-10-12 16:05:45,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 712 transitions. [2020-10-12 16:05:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 16:05:45,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:45,458 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:45,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 16:05:45,459 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:45,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:45,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1823211956, now seen corresponding path program 1 times [2020-10-12 16:05:45,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:45,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555540787] [2020-10-12 16:05:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:45,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 16:05:45,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-12 16:05:45,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:05:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 16:05:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 16:05:45,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:45,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:45,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:45,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:45,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:45,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:45,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:45,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:45,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:45,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:05:45,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:45,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:45,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:45,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:45,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:45,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:45,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:45,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:45,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:45,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:45,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:45,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:45,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 16:05:45,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555540787] [2020-10-12 16:05:45,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:45,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 16:05:45,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203350573] [2020-10-12 16:05:45,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:05:45,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:45,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:05:45,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:45,760 INFO L87 Difference]: Start difference. First operand 407 states and 712 transitions. Second operand 8 states. [2020-10-12 16:05:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:46,045 INFO L93 Difference]: Finished difference Result 585 states and 1015 transitions. [2020-10-12 16:05:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:05:46,046 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-10-12 16:05:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:46,052 INFO L225 Difference]: With dead ends: 585 [2020-10-12 16:05:46,052 INFO L226 Difference]: Without dead ends: 583 [2020-10-12 16:05:46,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:46,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-10-12 16:05:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 411. [2020-10-12 16:05:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-12 16:05:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 715 transitions. [2020-10-12 16:05:46,128 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 715 transitions. Word has length 26 [2020-10-12 16:05:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:46,128 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 715 transitions. [2020-10-12 16:05:46,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:05:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 715 transitions. [2020-10-12 16:05:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 16:05:46,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:46,130 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:46,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 16:05:46,130 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:46,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1309395559, now seen corresponding path program 1 times [2020-10-12 16:05:46,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:46,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903127031] [2020-10-12 16:05:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:46,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:46,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-12 16:05:46,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 16:05:46,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:05:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 16:05:46,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:46,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:46,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:46,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:46,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:46,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:46,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:46,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:46,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:46,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:46,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:46,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:46,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:46,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:46,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:46,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:46,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:46,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:46,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:46,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:05:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:46,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:46,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 16:05:46,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903127031] [2020-10-12 16:05:46,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:46,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:46,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360003596] [2020-10-12 16:05:46,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:46,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:46,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:46,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:46,254 INFO L87 Difference]: Start difference. First operand 411 states and 715 transitions. Second operand 6 states. [2020-10-12 16:05:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:46,497 INFO L93 Difference]: Finished difference Result 558 states and 962 transitions. [2020-10-12 16:05:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:46,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-12 16:05:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:46,502 INFO L225 Difference]: With dead ends: 558 [2020-10-12 16:05:46,502 INFO L226 Difference]: Without dead ends: 556 [2020-10-12 16:05:46,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:46,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-10-12 16:05:46,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 515. [2020-10-12 16:05:46,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-12 16:05:46,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 901 transitions. [2020-10-12 16:05:46,570 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 901 transitions. Word has length 29 [2020-10-12 16:05:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:46,571 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 901 transitions. [2020-10-12 16:05:46,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:46,571 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 901 transitions. [2020-10-12 16:05:46,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 16:05:46,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:46,572 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:46,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 16:05:46,573 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:46,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1863794769, now seen corresponding path program 1 times [2020-10-12 16:05:46,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:46,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469568620] [2020-10-12 16:05:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:46,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:46,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:47,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:47,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 16:05:47,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 16:05:47,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-10-12 16:05:47,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:05:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 16:05:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 16:05:47,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:47,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:47,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:47,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:47,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:47,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:47,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:47,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:47,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:47,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:47,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:47,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:47,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:05:47,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:47,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:47,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:47,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:47,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:47,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:47,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:47,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:47,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:47,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:05:47,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:47,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:47,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:47,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 16:05:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:47,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:47,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:47,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:47,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:47,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:47,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 16:05:47,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469568620] [2020-10-12 16:05:47,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:47,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 16:05:47,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246228538] [2020-10-12 16:05:47,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:05:47,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:47,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:05:47,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:47,801 INFO L87 Difference]: Start difference. First operand 515 states and 901 transitions. Second operand 8 states. [2020-10-12 16:05:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:48,143 INFO L93 Difference]: Finished difference Result 585 states and 1013 transitions. [2020-10-12 16:05:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:05:48,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-10-12 16:05:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:48,149 INFO L225 Difference]: With dead ends: 585 [2020-10-12 16:05:48,149 INFO L226 Difference]: Without dead ends: 583 [2020-10-12 16:05:48,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:48,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-10-12 16:05:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 517. [2020-10-12 16:05:48,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-10-12 16:05:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 903 transitions. [2020-10-12 16:05:48,238 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 903 transitions. Word has length 31 [2020-10-12 16:05:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:48,238 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 903 transitions. [2020-10-12 16:05:48,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:05:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 903 transitions. [2020-10-12 16:05:48,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-12 16:05:48,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:48,240 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:48,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 16:05:48,240 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:48,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:48,241 INFO L82 PathProgramCache]: Analyzing trace with hash -862273228, now seen corresponding path program 1 times [2020-10-12 16:05:48,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:48,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946304467] [2020-10-12 16:05:48,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:48,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:48,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:49,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:49,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 16:05:49,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 16:05:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1054 [2020-10-12 16:05:49,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:05:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 16:05:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 16:05:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:49,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:49,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:49,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:49,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:49,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:49,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:49,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:49,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:49,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:49,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:49,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:49,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:05:49,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:49,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:49,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:49,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:49,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:49,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:49,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:05:49,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:49,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:49,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 16:05:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:49,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:49,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:49,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:49,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 16:05:49,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946304467] [2020-10-12 16:05:49,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:49,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 16:05:49,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967932303] [2020-10-12 16:05:49,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:05:49,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:49,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:05:49,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:49,406 INFO L87 Difference]: Start difference. First operand 517 states and 903 transitions. Second operand 8 states. [2020-10-12 16:05:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:49,708 INFO L93 Difference]: Finished difference Result 541 states and 935 transitions. [2020-10-12 16:05:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:05:49,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-10-12 16:05:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:49,714 INFO L225 Difference]: With dead ends: 541 [2020-10-12 16:05:49,714 INFO L226 Difference]: Without dead ends: 539 [2020-10-12 16:05:49,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-12 16:05:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 517. [2020-10-12 16:05:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-10-12 16:05:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 903 transitions. [2020-10-12 16:05:49,787 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 903 transitions. Word has length 32 [2020-10-12 16:05:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:49,787 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 903 transitions. [2020-10-12 16:05:49,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:05:49,787 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 903 transitions. [2020-10-12 16:05:49,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 16:05:49,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:49,789 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:49,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 16:05:49,789 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:49,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1966021174, now seen corresponding path program 1 times [2020-10-12 16:05:49,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:49,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687732292] [2020-10-12 16:05:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:49,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 16:05:50,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:05:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-12 16:05:50,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:05:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-12 16:05:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 16:05:50,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:50,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:50,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:05:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 16:05:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:05:50,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:50,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:50,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:05:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:50,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-12 16:05:50,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687732292] [2020-10-12 16:05:50,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:50,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 16:05:50,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057568182] [2020-10-12 16:05:50,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:50,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:50,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:50,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:50,172 INFO L87 Difference]: Start difference. First operand 517 states and 903 transitions. Second operand 7 states. [2020-10-12 16:05:50,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:50,484 INFO L93 Difference]: Finished difference Result 609 states and 1043 transitions. [2020-10-12 16:05:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:50,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-12 16:05:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:50,491 INFO L225 Difference]: With dead ends: 609 [2020-10-12 16:05:50,491 INFO L226 Difference]: Without dead ends: 607 [2020-10-12 16:05:50,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-10-12 16:05:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 529. [2020-10-12 16:05:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2020-10-12 16:05:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 927 transitions. [2020-10-12 16:05:50,607 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 927 transitions. Word has length 41 [2020-10-12 16:05:50,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:50,608 INFO L479 AbstractCegarLoop]: Abstraction has 529 states and 927 transitions. [2020-10-12 16:05:50,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 927 transitions. [2020-10-12 16:05:50,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 16:05:50,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:50,609 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:50,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 16:05:50,610 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:50,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1399054702, now seen corresponding path program 1 times [2020-10-12 16:05:50,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:50,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115606901] [2020-10-12 16:05:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 16:05:50,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 16:05:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 16:05:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 16:05:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:50,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:50,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:50,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:50,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 16:05:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:50,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:50,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 16:05:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:50,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:50,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:50,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:50,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:05:50,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-12 16:05:50,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115606901] [2020-10-12 16:05:50,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:50,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:05:50,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669378943] [2020-10-12 16:05:50,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:50,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:50,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:50,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:50,785 INFO L87 Difference]: Start difference. First operand 529 states and 927 transitions. Second operand 7 states. [2020-10-12 16:05:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:51,011 INFO L93 Difference]: Finished difference Result 541 states and 937 transitions. [2020-10-12 16:05:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:51,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-12 16:05:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:51,017 INFO L225 Difference]: With dead ends: 541 [2020-10-12 16:05:51,017 INFO L226 Difference]: Without dead ends: 539 [2020-10-12 16:05:51,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:05:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-12 16:05:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-12 16:05:51,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-12 16:05:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 933 transitions. [2020-10-12 16:05:51,104 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 933 transitions. Word has length 41 [2020-10-12 16:05:51,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:51,105 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 933 transitions. [2020-10-12 16:05:51,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 933 transitions. [2020-10-12 16:05:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 16:05:51,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:51,107 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:51,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 16:05:51,107 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:51,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:51,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1323417912, now seen corresponding path program 1 times [2020-10-12 16:05:51,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:51,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949088445] [2020-10-12 16:05:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:51,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:51,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:52,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 16:05:56,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 16:05:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 16:05:56,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 16:05:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:05:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 16:05:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:56,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:56,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:56,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:56,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:56,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:56,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 16:05:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:05:56,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:56,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 16:05:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 16:05:56,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:56,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:56,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:05:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:56,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 16:05:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:56,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:56,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 16:05:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:56,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:56,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:56,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:56,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:56,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 26 proven. 22 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-12 16:05:56,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949088445] [2020-10-12 16:05:56,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:56,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 16:05:56,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840151225] [2020-10-12 16:05:56,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:05:56,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:56,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:05:56,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:05:56,284 INFO L87 Difference]: Start difference. First operand 537 states and 933 transitions. Second operand 10 states. [2020-10-12 16:05:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:57,325 INFO L93 Difference]: Finished difference Result 830 states and 1406 transitions. [2020-10-12 16:05:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 16:05:57,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-10-12 16:05:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:57,334 INFO L225 Difference]: With dead ends: 830 [2020-10-12 16:05:57,334 INFO L226 Difference]: Without dead ends: 828 [2020-10-12 16:05:57,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-10-12 16:05:57,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-10-12 16:05:57,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 537. [2020-10-12 16:05:57,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-12 16:05:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 933 transitions. [2020-10-12 16:05:57,472 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 933 transitions. Word has length 54 [2020-10-12 16:05:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:57,473 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 933 transitions. [2020-10-12 16:05:57,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:05:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 933 transitions. [2020-10-12 16:05:57,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-12 16:05:57,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:57,479 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:57,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 16:05:57,479 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:57,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1365572826, now seen corresponding path program 1 times [2020-10-12 16:05:57,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:57,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548581025] [2020-10-12 16:05:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:57,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:57,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:57,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:57,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 16:05:58,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:05:58,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-10-12 16:05:58,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 16:05:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:05:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 16:05:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:58,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:05:58,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:58,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:05:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:05:58,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:05:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:05:58,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 16:05:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:05:58,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 16:05:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 16:05:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:05:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 16:05:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 16:05:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:58,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:58,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 16:05:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:58,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 16:05:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:58,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 16:05:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:58,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 16:05:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:58,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 16:05:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:58,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:05:58,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:05:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 33 proven. 23 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-10-12 16:05:58,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548581025] [2020-10-12 16:05:58,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:58,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 16:05:58,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850471162] [2020-10-12 16:05:58,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:05:58,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:58,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:05:58,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:05:58,810 INFO L87 Difference]: Start difference. First operand 537 states and 933 transitions. Second operand 10 states. [2020-10-12 16:06:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:06:01,673 INFO L93 Difference]: Finished difference Result 1219 states and 2103 transitions. [2020-10-12 16:06:01,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 16:06:01,674 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-12 16:06:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:06:01,681 INFO L225 Difference]: With dead ends: 1219 [2020-10-12 16:06:01,681 INFO L226 Difference]: Without dead ends: 739 [2020-10-12 16:06:01,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-12 16:06:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-10-12 16:06:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 582. [2020-10-12 16:06:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-10-12 16:06:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 1011 transitions. [2020-10-12 16:06:01,800 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 1011 transitions. Word has length 76 [2020-10-12 16:06:01,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:06:01,801 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 1011 transitions. [2020-10-12 16:06:01,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:06:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 1011 transitions. [2020-10-12 16:06:01,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 16:06:01,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:06:01,806 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:06:01,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 16:06:01,807 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:06:01,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:06:01,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1944116950, now seen corresponding path program 1 times [2020-10-12 16:06:01,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:06:01,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774062007] [2020-10-12 16:06:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:06:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:01,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:01,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:01,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:02,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:05,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:05,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 16:06:06,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 16:06:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 16:06:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:06:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 16:06:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-12 16:06:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:06:06,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:06:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:06,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:06:06,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:06:06,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:06:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:06:06,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:06,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:06:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:06,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:06,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:06,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:06:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:06,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:06,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:06,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:06,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 16:06:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:06,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:06,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:06,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 16:06:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:06,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:06:06,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:06,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 16:06:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:06,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:06,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:06,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:06,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:06:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:06:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:06:06,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 16:06:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 16:06:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 16:06:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:06:07,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 16:06:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 16:06:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 16:06:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 16:06:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 16:06:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:06:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 16:06:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:07,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 16:06:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:07,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:07,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:07,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:07,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:07,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:07,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:06:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:06:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:06:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 49 proven. 38 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-10-12 16:06:07,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774062007] [2020-10-12 16:06:07,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:06:07,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 16:06:07,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013596664] [2020-10-12 16:06:07,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:06:07,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:06:07,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:06:07,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:06:07,088 INFO L87 Difference]: Start difference. First operand 582 states and 1011 transitions. Second operand 11 states. [2020-10-12 16:06:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:06:07,816 INFO L93 Difference]: Finished difference Result 1303 states and 2264 transitions. [2020-10-12 16:06:07,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:06:07,817 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-12 16:06:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:06:07,824 INFO L225 Difference]: With dead ends: 1303 [2020-10-12 16:06:07,824 INFO L226 Difference]: Without dead ends: 823 [2020-10-12 16:06:07,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:06:07,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-10-12 16:06:07,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 642. [2020-10-12 16:06:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-10-12 16:06:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1119 transitions. [2020-10-12 16:06:07,978 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1119 transitions. Word has length 103 [2020-10-12 16:06:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:06:07,980 INFO L479 AbstractCegarLoop]: Abstraction has 642 states and 1119 transitions. [2020-10-12 16:06:07,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:06:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1119 transitions. [2020-10-12 16:06:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 16:06:07,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:06:07,994 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:06:07,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 16:06:07,994 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:06:07,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:06:07,995 INFO L82 PathProgramCache]: Analyzing trace with hash 428771510, now seen corresponding path program 1 times [2020-10-12 16:06:07,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:06:07,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2839683] [2020-10-12 16:06:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:06:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:08,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:08,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:08,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:08,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:08,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:09,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:09,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:12,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:12,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 16:06:12,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 16:06:12,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4939 [2020-10-12 16:06:12,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:06:12,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 16:06:12,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 16:06:12,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:06:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:06:13,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:06:13,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:06:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:06:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:06:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:06:13,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:06:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:13,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 16:06:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:06:13,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 16:06:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:13,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 16:06:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:06:13,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:06:13,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:06:13,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 16:06:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:06:13,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 16:06:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:13,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 16:06:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:13,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 16:06:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:13,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 16:06:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:13,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 16:06:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:13,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 16:06:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:13,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 16:06:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:13,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 16:06:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:13,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:13,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 16:06:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:13,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:13,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:13,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:13,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:06:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 16:06:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:06:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 49 proven. 38 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-10-12 16:06:13,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2839683] [2020-10-12 16:06:13,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:06:13,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 16:06:13,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675942399] [2020-10-12 16:06:13,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 16:06:13,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:06:13,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 16:06:13,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:06:13,225 INFO L87 Difference]: Start difference. First operand 642 states and 1119 transitions. Second operand 11 states. [2020-10-12 16:06:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:06:15,610 INFO L93 Difference]: Finished difference Result 2603 states and 4581 transitions. [2020-10-12 16:06:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 16:06:15,610 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-12 16:06:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:06:15,629 INFO L225 Difference]: With dead ends: 2603 [2020-10-12 16:06:15,629 INFO L226 Difference]: Without dead ends: 1985 [2020-10-12 16:06:15,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 16:06:15,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-10-12 16:06:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1562. [2020-10-12 16:06:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1562 states. [2020-10-12 16:06:16,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2773 transitions. [2020-10-12 16:06:16,035 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2773 transitions. Word has length 103 [2020-10-12 16:06:16,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:06:16,035 INFO L479 AbstractCegarLoop]: Abstraction has 1562 states and 2773 transitions. [2020-10-12 16:06:16,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 16:06:16,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2773 transitions. [2020-10-12 16:06:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 16:06:16,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:06:16,039 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:06:16,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 16:06:16,040 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:06:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:06:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1322257848, now seen corresponding path program 1 times [2020-10-12 16:06:16,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:06:16,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105227312] [2020-10-12 16:06:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:06:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 16:06:16,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:06:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-12 16:06:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:06:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:06:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 16:06:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:06:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 16:06:16,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:06:16,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:06:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:06:16,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 16:06:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 16:06:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:06:16,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:06:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:06:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 16:06:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 16:06:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 16:06:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 16:06:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 16:06:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 16:06:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 16:06:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 16:06:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 16:06:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 16:06:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:06:16,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 16:06:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 16:06:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 16:06:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:06:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:06:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:06:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 16:06:16,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:06:16,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:06:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:06:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:06:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:06:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:06:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:06:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 37 proven. 47 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-12 16:06:16,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105227312] [2020-10-12 16:06:16,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:06:16,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 16:06:16,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175032822] [2020-10-12 16:06:16,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:06:16,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:06:16,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:06:16,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:06:16,409 INFO L87 Difference]: Start difference. First operand 1562 states and 2773 transitions. Second operand 9 states. [2020-10-12 16:06:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:06:16,915 INFO L93 Difference]: Finished difference Result 1730 states and 3016 transitions. [2020-10-12 16:06:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:06:16,916 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-12 16:06:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:06:16,917 INFO L225 Difference]: With dead ends: 1730 [2020-10-12 16:06:16,917 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 16:06:16,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-10-12 16:06:16,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 16:06:16,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 16:06:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 16:06:16,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 16:06:16,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2020-10-12 16:06:16,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:06:16,928 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 16:06:16,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:06:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 16:06:16,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 16:06:16,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 16:06:16,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 16:06:18,222 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 362 DAG size of output: 194 [2020-10-12 16:06:18,392 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 95 [2020-10-12 16:06:19,131 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 233 [2020-10-12 16:06:19,587 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 228 [2020-10-12 16:06:20,225 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 297 [2020-10-12 16:06:20,597 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 228 [2020-10-12 16:06:20,982 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 191 [2020-10-12 16:06:22,041 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 179 [2020-10-12 16:06:22,427 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 262 [2020-10-12 16:06:22,749 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 192 [2020-10-12 16:06:23,091 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 262 [2020-10-12 16:06:23,765 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 17 [2020-10-12 16:06:23,916 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-10-12 16:06:24,658 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 17 [2020-10-12 16:06:26,143 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 225 DAG size of output: 23 [2020-10-12 16:06:27,644 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 289 DAG size of output: 19 [2020-10-12 16:06:29,169 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 225 DAG size of output: 23 [2020-10-12 16:06:29,299 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 17 [2020-10-12 16:06:29,424 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 17 [2020-10-12 16:06:30,082 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 17 [2020-10-12 16:06:30,727 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 17 [2020-10-12 16:06:32,521 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 231 DAG size of output: 34 [2020-10-12 16:06:33,201 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 17 [2020-10-12 16:06:35,130 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 231 DAG size of output: 34 [2020-10-12 16:06:35,134 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-12 16:06:35,134 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:06:35,134 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:06:35,135 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-12 16:06:35,135 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 16:06:35,135 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:06:35,135 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-12 16:06:35,135 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-12 16:06:35,135 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-12 16:06:35,135 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-12 16:06:35,135 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= main_~j~0 .cse0) (<= (+ main_~j~0 1) main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,136 INFO L264 CegarLoopResult]: At program point L27-2(lines 27 47) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0)) (.cse1 (* 2 main_~l~0))) (and (<= 1 main_~l~0) (<= .cse0 main_~j~0) (<= .cse1 main_~j~0) (<= main_~j~0 .cse0) (<= .cse1 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,136 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 59) no Hoare annotation was computed. [2020-10-12 16:06:35,136 INFO L268 CegarLoopResult]: For program point L27-3(lines 24 57) no Hoare annotation was computed. [2020-10-12 16:06:35,136 INFO L268 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-10-12 16:06:35,136 INFO L268 CegarLoopResult]: For program point L48-1(lines 13 59) no Hoare annotation was computed. [2020-10-12 16:06:35,136 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-12 16:06:35,136 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (<= 1 main_~l~0) (<= (* 2 main_~i~0) main_~j~0) (<= (* 2 main_~l~0) main_~j~0) (<= 1 main_~i~0) (<= main_~j~0 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0)) [2020-10-12 16:06:35,137 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-12 16:06:35,137 INFO L268 CegarLoopResult]: For program point L28(lines 28 35) no Hoare annotation was computed. [2020-10-12 16:06:35,137 INFO L264 CegarLoopResult]: At program point L28-1(lines 28 35) the Hoare annotation is: (and (<= 1 main_~l~0) (<= (* 2 main_~i~0) main_~j~0) (<= (* 2 main_~l~0) main_~j~0) (<= 1 main_~i~0) (<= main_~j~0 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0)) [2020-10-12 16:06:35,137 INFO L268 CegarLoopResult]: For program point L24-1(lines 24 57) no Hoare annotation was computed. [2020-10-12 16:06:35,138 INFO L264 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (* 2 main_~l~0)) (.cse1 (* 4 main_~l~0))) (and (<= 1 main_~l~0) (<= (* 2 main_~i~0) main_~j~0) (<= .cse0 main_~j~0) (<= 1 main_~i~0) (or (<= (+ main_~r~0 3) .cse1) (<= main_~l~0 1)) (<= .cse0 main_~n~0) (or (<= (+ main_~r~0 7) .cse1) (<= main_~l~0 2)) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,138 INFO L264 CegarLoopResult]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse0 (* 2 main_~l~0)) (.cse1 (* 4 main_~l~0))) (and (<= 1 main_~l~0) (<= (* 2 main_~i~0) main_~j~0) (<= .cse0 main_~j~0) (<= 1 main_~i~0) (or (<= (+ main_~r~0 3) .cse1) (<= main_~l~0 1)) (<= .cse0 main_~n~0) (or (<= (+ main_~r~0 7) .cse1) (<= main_~l~0 2)) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,138 INFO L264 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~l~0))) (and (<= .cse0 (+ main_~n~0 2)) (<= (* 2 main_~i~0) main_~j~0) (<= .cse0 main_~j~0) (<= 1 main_~i~0) (<= 2 main_~l~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,138 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-12 16:06:35,139 INFO L264 CegarLoopResult]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~l~0))) (and (<= .cse0 (+ main_~n~0 2)) (<= (* 2 main_~i~0) main_~j~0) (<= .cse0 main_~j~0) (<= 1 main_~i~0) (<= 2 main_~l~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,139 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (<= 1 main_~l~0) (<= (* 2 main_~i~0) main_~j~0) (<= (* 2 main_~l~0) main_~j~0) (<= 1 main_~i~0) (<= main_~j~0 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0)) [2020-10-12 16:06:35,139 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= (* 2 main_~i~0) main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= 1 main_~i~0) (<= main_~j~0 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0)) [2020-10-12 16:06:35,139 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-12 16:06:35,139 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-12 16:06:35,139 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= main_~j~0 .cse0) (<= (+ main_~j~0 1) main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,139 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= main_~j~0 .cse0) (<= (+ main_~j~0 1) main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,139 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-12 16:06:35,139 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-12 16:06:35,139 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 59) no Hoare annotation was computed. [2020-10-12 16:06:35,140 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (<= (* 2 main_~i~0) main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= 1 main_~i~0) (<= main_~j~0 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0)) [2020-10-12 16:06:35,140 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-10-12 16:06:35,140 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= main_~j~0 .cse0) (<= (+ main_~j~0 1) main_~r~0) (<= main_~r~0 main_~n~0))) [2020-10-12 16:06:35,140 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 59) the Hoare annotation is: true [2020-10-12 16:06:35,140 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (<= (* 2 main_~i~0) main_~j~0) (<= 1 main_~l~0) (<= (* 2 main_~l~0) main_~j~0) (<= 1 main_~i~0) (<= main_~j~0 main_~n~0) (<= 1 main_~r~0) (<= main_~r~0 main_~n~0)) [2020-10-12 16:06:35,140 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-12 16:06:35,140 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-12 16:06:35,140 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-12 16:06:35,141 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-12 16:06:35,141 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-12 16:06:35,141 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-12 16:06:35,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:06:35 BoogieIcfgContainer [2020-10-12 16:06:35,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 16:06:35,162 INFO L168 Benchmark]: Toolchain (without parser) took 54250.57 ms. Allocated memory was 140.0 MB in the beginning and 807.9 MB in the end (delta: 667.9 MB). Free memory was 102.1 MB in the beginning and 181.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 657.2 MB. Max. memory is 7.1 GB. [2020-10-12 16:06:35,163 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 16:06:35,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.33 ms. Allocated memory is still 140.0 MB. Free memory was 101.9 MB in the beginning and 91.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-12 16:06:35,164 INFO L168 Benchmark]: Boogie Preprocessor took 112.06 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 91.8 MB in the beginning and 179.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-10-12 16:06:35,165 INFO L168 Benchmark]: RCFGBuilder took 342.07 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 163.3 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-10-12 16:06:35,165 INFO L168 Benchmark]: TraceAbstraction took 53415.95 ms. Allocated memory was 201.9 MB in the beginning and 807.9 MB in the end (delta: 606.1 MB). Free memory was 162.7 MB in the beginning and 181.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 656.0 MB. Max. memory is 7.1 GB. [2020-10-12 16:06:35,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 370.33 ms. Allocated memory is still 140.0 MB. Free memory was 101.9 MB in the beginning and 91.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.06 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 91.8 MB in the beginning and 179.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.07 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 163.3 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53415.95 ms. Allocated memory was 201.9 MB in the beginning and 807.9 MB in the end (delta: 606.1 MB). Free memory was 162.7 MB in the beginning and 181.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 656.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((1 <= l && 2 * i <= j) && 2 * l <= j) && j <= 2 * i) && 2 * l <= n) && 1 <= r) && r <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.0s, OverallIterations: 16, TraceHistogramMax: 16, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 18.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 958 SDtfs, 757 SDslu, 3494 SDs, 0 SdLazy, 5882 SolverSat, 1398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 412 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1562occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 1562 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 2012 PreInvPairs, 3052 NumberOfFragments, 459 HoareAnnotationTreeSize, 2012 FomulaSimplifications, 401661939 FormulaSimplificationTreeSizeReduction, 6.1s HoareSimplificationTime, 20 FomulaSimplificationsInter, 62071173 FormulaSimplificationTreeSizeReductionInter, 11.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 719 NumberOfCodeBlocks, 719 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 703 ConstructedInterpolants, 0 QuantifiedInterpolants, 139163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1702/1894 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...