/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:57:11,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:57:11,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:57:11,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:57:11,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:57:11,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:57:11,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:57:11,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:57:11,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:57:11,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:57:11,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:57:11,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:57:11,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:57:11,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:57:11,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:57:11,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:57:11,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:57:11,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:57:11,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:57:11,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:57:11,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:57:11,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:57:11,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:57:11,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:57:11,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:57:11,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:57:11,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:57:11,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:57:11,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:57:11,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 00:57:11,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:57:11,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:57:11,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:57:11,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:57:11,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:57:11,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:57:11,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:57:11,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:57:11,640 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:57:11,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:57:11,641 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:57:11,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:57:11,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:57:11,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:57:11,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:57:11,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:57:11,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:57:11,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:57:11,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:57:11,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:57:11,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:57:11,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:57:11,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:57:11,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:57:11,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:57:11,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:57:11,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:57:11,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:57:11,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:57:11,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:57:11,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:57:11,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:57:11,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:57:11,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:57:12,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:57:12,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:57:12,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:57:12,170 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:57:12,171 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:57:12,173 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-09-25 00:57:12,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4748303b5/3ce94502019e441cb658eaa3acb1290a/FLAGac1ebdd58 [2020-09-25 00:57:12,810 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:57:12,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_9.c [2020-09-25 00:57:12,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4748303b5/3ce94502019e441cb658eaa3acb1290a/FLAGac1ebdd58 [2020-09-25 00:57:13,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4748303b5/3ce94502019e441cb658eaa3acb1290a [2020-09-25 00:57:13,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:57:13,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:57:13,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:13,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:57:13,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:57:13,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24306fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13, skipping insertion in model container [2020-09-25 00:57:13,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:57:13,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:57:13,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:13,559 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:57:13,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:13,640 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:57:13,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13 WrapperNode [2020-09-25 00:57:13,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:13,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:57:13,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:57:13,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:57:13,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:57:13,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:57:13,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:57:13,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:57:13,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:57:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:57:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:57:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:57:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:57:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:57:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:57:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:57:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:57:14,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:57:14,275 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:57:14,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:14 BoogieIcfgContainer [2020-09-25 00:57:14,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:57:14,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:57:14,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:57:14,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:57:14,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:57:13" (1/3) ... [2020-09-25 00:57:14,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4354af3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:14, skipping insertion in model container [2020-09-25 00:57:14,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13" (2/3) ... [2020-09-25 00:57:14,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4354af3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:14, skipping insertion in model container [2020-09-25 00:57:14,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:14" (3/3) ... [2020-09-25 00:57:14,303 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-09-25 00:57:14,314 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:57:14,330 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:57:14,350 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:57:14,386 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:57:14,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:57:14,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:57:14,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:57:14,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:57:14,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:57:14,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:57:14,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:57:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-09-25 00:57:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 00:57:14,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:14,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:14,427 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:14,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:14,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-09-25 00:57:14,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:14,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696859023] [2020-09-25 00:57:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:14,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 00:57:14,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:14,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 00:57:14,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 00:57:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:14,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:57:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:14,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:14,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:14,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:14,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:57:14,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:14,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:14,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696859023] [2020-09-25 00:57:14,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:14,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:14,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203826375] [2020-09-25 00:57:14,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:14,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:14,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:14,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:14,975 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-09-25 00:57:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:15,092 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-09-25 00:57:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:15,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 00:57:15,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:15,112 INFO L225 Difference]: With dead ends: 235 [2020-09-25 00:57:15,112 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 00:57:15,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 00:57:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-09-25 00:57:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 00:57:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-09-25 00:57:15,181 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-09-25 00:57:15,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:15,182 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-09-25 00:57:15,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-09-25 00:57:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 00:57:15,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:15,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:15,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:57:15,187 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:15,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-09-25 00:57:15,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:15,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522047153] [2020-09-25 00:57:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 00:57:15,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:15,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 00:57:15,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 00:57:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:15,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:15,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:15,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:57:15,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:15,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:15,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:15,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:15,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:15,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522047153] [2020-09-25 00:57:15,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:15,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:15,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712449693] [2020-09-25 00:57:15,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:15,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:15,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:15,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:15,496 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-09-25 00:57:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:15,525 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-09-25 00:57:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:15,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 00:57:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:15,528 INFO L225 Difference]: With dead ends: 192 [2020-09-25 00:57:15,529 INFO L226 Difference]: Without dead ends: 190 [2020-09-25 00:57:15,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-25 00:57:15,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-09-25 00:57:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 00:57:15,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-09-25 00:57:15,563 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-09-25 00:57:15,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:15,564 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-09-25 00:57:15,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-09-25 00:57:15,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 00:57:15,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:15,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:15,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:57:15,573 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:15,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:15,576 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-09-25 00:57:15,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:15,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719643174] [2020-09-25 00:57:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 00:57:15,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 00:57:15,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 00:57:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:15,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:15,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:15,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:15,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719643174] [2020-09-25 00:57:15,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:15,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:15,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825830787] [2020-09-25 00:57:15,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:15,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:15,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:15,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:15,730 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-09-25 00:57:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:15,772 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-09-25 00:57:15,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:15,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 00:57:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:15,782 INFO L225 Difference]: With dead ends: 386 [2020-09-25 00:57:15,782 INFO L226 Difference]: Without dead ends: 269 [2020-09-25 00:57:15,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-25 00:57:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-09-25 00:57:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 00:57:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-09-25 00:57:15,819 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-09-25 00:57:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:15,820 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-09-25 00:57:15,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-09-25 00:57:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 00:57:15,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:15,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:15,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:57:15,828 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:15,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:15,830 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-09-25 00:57:15,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:15,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333918662] [2020-09-25 00:57:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 00:57:15,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 00:57:15,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 00:57:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:15,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:57:15,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:15,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333918662] [2020-09-25 00:57:15,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:15,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:15,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172080705] [2020-09-25 00:57:15,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:15,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:15,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:15,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:15,999 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-09-25 00:57:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,035 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-09-25 00:57:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:16,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 00:57:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:16,041 INFO L225 Difference]: With dead ends: 327 [2020-09-25 00:57:16,042 INFO L226 Difference]: Without dead ends: 325 [2020-09-25 00:57:16,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-25 00:57:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-09-25 00:57:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 00:57:16,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-09-25 00:57:16,072 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-09-25 00:57:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:16,072 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-09-25 00:57:16,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-09-25 00:57:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 00:57:16,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:16,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:16,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:57:16,082 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:16,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-09-25 00:57:16,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:16,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324732943] [2020-09-25 00:57:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 00:57:16,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 00:57:16,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 00:57:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:16,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:16,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:16,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:16,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324732943] [2020-09-25 00:57:16,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:16,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:16,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555451659] [2020-09-25 00:57:16,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:16,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:16,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:16,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,232 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-09-25 00:57:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,262 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-09-25 00:57:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:16,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 00:57:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:16,268 INFO L225 Difference]: With dead ends: 707 [2020-09-25 00:57:16,268 INFO L226 Difference]: Without dead ends: 481 [2020-09-25 00:57:16,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-25 00:57:16,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-09-25 00:57:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-09-25 00:57:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-09-25 00:57:16,297 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-09-25 00:57:16,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:16,298 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-09-25 00:57:16,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:16,299 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-09-25 00:57:16,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 00:57:16,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:16,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:16,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:57:16,305 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:16,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:16,306 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-09-25 00:57:16,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:16,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518813081] [2020-09-25 00:57:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 00:57:16,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:57:16,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 00:57:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:16,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:16,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:16,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:16,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518813081] [2020-09-25 00:57:16,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:16,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:16,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355074199] [2020-09-25 00:57:16,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:16,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:16,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:16,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,430 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-09-25 00:57:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,455 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-09-25 00:57:16,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:16,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 00:57:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:16,461 INFO L225 Difference]: With dead ends: 587 [2020-09-25 00:57:16,461 INFO L226 Difference]: Without dead ends: 585 [2020-09-25 00:57:16,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-25 00:57:16,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-09-25 00:57:16,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-09-25 00:57:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-09-25 00:57:16,485 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-09-25 00:57:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:16,486 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-09-25 00:57:16,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-09-25 00:57:16,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 00:57:16,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:16,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:16,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:57:16,489 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:16,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:16,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-09-25 00:57:16,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:16,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114036069] [2020-09-25 00:57:16,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 00:57:16,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 00:57:16,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 00:57:16,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:16,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:16,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:16,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:16,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:16,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114036069] [2020-09-25 00:57:16,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:16,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:16,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537827809] [2020-09-25 00:57:16,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:16,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:16,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:16,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,608 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-09-25 00:57:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,642 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-09-25 00:57:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:16,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 00:57:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:16,648 INFO L225 Difference]: With dead ends: 1331 [2020-09-25 00:57:16,648 INFO L226 Difference]: Without dead ends: 893 [2020-09-25 00:57:16,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-09-25 00:57:16,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-09-25 00:57:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 00:57:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-09-25 00:57:16,674 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-09-25 00:57:16,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:16,675 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-09-25 00:57:16,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-09-25 00:57:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 00:57:16,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:16,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:16,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:57:16,677 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:16,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:16,678 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-09-25 00:57:16,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:16,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108826118] [2020-09-25 00:57:16,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:57:16,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 00:57:16,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 00:57:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:16,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:16,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:16,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:16,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:16,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:16,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108826118] [2020-09-25 00:57:16,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:16,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:16,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696282188] [2020-09-25 00:57:16,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:16,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:16,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:16,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,773 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-09-25 00:57:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,800 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-09-25 00:57:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:16,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-09-25 00:57:16,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:16,807 INFO L225 Difference]: With dead ends: 1087 [2020-09-25 00:57:16,808 INFO L226 Difference]: Without dead ends: 1085 [2020-09-25 00:57:16,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-09-25 00:57:16,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-09-25 00:57:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 00:57:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-09-25 00:57:16,834 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-09-25 00:57:16,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:16,834 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-09-25 00:57:16,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-09-25 00:57:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 00:57:16,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:16,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:16,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:57:16,837 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:16,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:16,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-09-25 00:57:16,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:16,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619976043] [2020-09-25 00:57:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:57:16,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 00:57:16,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:16,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 00:57:16,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:16,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:16,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:16,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:16,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:16,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:16,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619976043] [2020-09-25 00:57:16,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:16,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:16,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062739801] [2020-09-25 00:57:16,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:16,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:16,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:16,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:16,945 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-09-25 00:57:16,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,990 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-09-25 00:57:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:16,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-09-25 00:57:16,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:17,003 INFO L225 Difference]: With dead ends: 2543 [2020-09-25 00:57:17,003 INFO L226 Difference]: Without dead ends: 1693 [2020-09-25 00:57:17,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-09-25 00:57:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-09-25 00:57:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-09-25 00:57:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-09-25 00:57:17,064 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-09-25 00:57:17,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:17,064 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-09-25 00:57:17,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:17,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-09-25 00:57:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 00:57:17,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:17,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:17,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:57:17,069 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-09-25 00:57:17,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:17,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401283150] [2020-09-25 00:57:17,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:57:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:57:17,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 00:57:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:17,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:17,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:17,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:17,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401283150] [2020-09-25 00:57:17,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:17,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:17,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732112190] [2020-09-25 00:57:17,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:17,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:17,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:17,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,182 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-09-25 00:57:17,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:17,223 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-09-25 00:57:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:17,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-09-25 00:57:17,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:17,236 INFO L225 Difference]: With dead ends: 2047 [2020-09-25 00:57:17,251 INFO L226 Difference]: Without dead ends: 2045 [2020-09-25 00:57:17,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-09-25 00:57:17,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-09-25 00:57:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-09-25 00:57:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-09-25 00:57:17,315 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-09-25 00:57:17,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:17,315 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-09-25 00:57:17,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:17,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-09-25 00:57:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 00:57:17,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:17,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:17,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:57:17,318 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:17,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:17,319 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-09-25 00:57:17,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:17,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272695118] [2020-09-25 00:57:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:57:17,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:57:17,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:17,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 00:57:17,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:17,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:17,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:17,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:17,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:17,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272695118] [2020-09-25 00:57:17,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:17,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:17,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077197792] [2020-09-25 00:57:17,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:17,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:17,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:17,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,420 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-09-25 00:57:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:17,477 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-09-25 00:57:17,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:17,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-09-25 00:57:17,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:17,496 INFO L225 Difference]: With dead ends: 4895 [2020-09-25 00:57:17,496 INFO L226 Difference]: Without dead ends: 3245 [2020-09-25 00:57:17,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-09-25 00:57:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-09-25 00:57:17,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-09-25 00:57:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-09-25 00:57:17,606 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-09-25 00:57:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:17,606 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-09-25 00:57:17,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-09-25 00:57:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 00:57:17,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:17,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:17,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:57:17,611 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-09-25 00:57:17,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:17,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004053781] [2020-09-25 00:57:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 00:57:17,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 00:57:17,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:17,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 00:57:17,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:17,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:17,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:17,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:17,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:17,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004053781] [2020-09-25 00:57:17,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:17,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:17,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854581129] [2020-09-25 00:57:17,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:17,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:17,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:17,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,708 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-09-25 00:57:17,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:17,759 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-09-25 00:57:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:17,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-25 00:57:17,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:17,778 INFO L225 Difference]: With dead ends: 3887 [2020-09-25 00:57:17,779 INFO L226 Difference]: Without dead ends: 3885 [2020-09-25 00:57:17,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-09-25 00:57:17,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-09-25 00:57:17,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-09-25 00:57:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-09-25 00:57:17,897 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-09-25 00:57:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:17,897 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-09-25 00:57:17,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-09-25 00:57:17,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 00:57:17,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:17,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:17,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:57:17,902 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:17,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-09-25 00:57:17,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:17,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055687840] [2020-09-25 00:57:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 00:57:17,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:57:17,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:17,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 00:57:17,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:17,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:17,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:17,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055687840] [2020-09-25 00:57:17,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:17,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:17,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813692849] [2020-09-25 00:57:17,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:17,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:17,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:17,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:17,996 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-09-25 00:57:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:18,080 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-09-25 00:57:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:18,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-25 00:57:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:18,109 INFO L225 Difference]: With dead ends: 9455 [2020-09-25 00:57:18,109 INFO L226 Difference]: Without dead ends: 6253 [2020-09-25 00:57:18,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:18,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-09-25 00:57:18,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-09-25 00:57:18,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-09-25 00:57:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-09-25 00:57:18,289 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-09-25 00:57:18,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:18,289 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-09-25 00:57:18,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:18,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-09-25 00:57:18,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 00:57:18,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:18,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:18,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 00:57:18,295 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:18,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-09-25 00:57:18,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:18,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961675750] [2020-09-25 00:57:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:18,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:18,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:57:18,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 00:57:18,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 00:57:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:18,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:18,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:18,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:18,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:18,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:18,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:18,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961675750] [2020-09-25 00:57:18,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:18,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:18,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677305242] [2020-09-25 00:57:18,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:18,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:18,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:18,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:18,393 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-09-25 00:57:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:18,512 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-09-25 00:57:18,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:18,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 00:57:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:18,618 INFO L225 Difference]: With dead ends: 18287 [2020-09-25 00:57:18,618 INFO L226 Difference]: Without dead ends: 12077 [2020-09-25 00:57:18,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:18,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-09-25 00:57:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-09-25 00:57:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 00:57:18,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-09-25 00:57:18,854 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-09-25 00:57:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:18,854 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-09-25 00:57:18,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:18,855 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-09-25 00:57:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 00:57:18,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:18,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:18,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 00:57:18,863 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:18,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:18,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-09-25 00:57:18,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:18,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279655302] [2020-09-25 00:57:18,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:18,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:18,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:57:18,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 00:57:18,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 00:57:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:18,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:18,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:18,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:18,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:18,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:18,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:18,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:18,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:18,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279655302] [2020-09-25 00:57:18,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:18,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:18,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87298842] [2020-09-25 00:57:18,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:18,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:18,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:18,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:18,961 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-09-25 00:57:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:19,052 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-09-25 00:57:19,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:19,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 00:57:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:19,080 INFO L225 Difference]: With dead ends: 14255 [2020-09-25 00:57:19,080 INFO L226 Difference]: Without dead ends: 14253 [2020-09-25 00:57:19,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-09-25 00:57:19,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-09-25 00:57:19,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 00:57:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-09-25 00:57:19,394 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-09-25 00:57:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:19,395 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-09-25 00:57:19,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:19,395 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-09-25 00:57:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 00:57:19,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:19,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:19,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 00:57:19,404 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:19,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-09-25 00:57:19,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:19,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230334831] [2020-09-25 00:57:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:57:19,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:57:19,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 00:57:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:19,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:19,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:19,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:19,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230334831] [2020-09-25 00:57:19,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:19,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:19,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922050480] [2020-09-25 00:57:19,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:19,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:19,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:19,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,496 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-09-25 00:57:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:19,600 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-09-25 00:57:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:19,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-25 00:57:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:19,630 INFO L225 Difference]: With dead ends: 14127 [2020-09-25 00:57:19,630 INFO L226 Difference]: Without dead ends: 14125 [2020-09-25 00:57:19,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-09-25 00:57:19,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-09-25 00:57:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 00:57:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-09-25 00:57:19,959 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-09-25 00:57:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:19,959 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-09-25 00:57:19,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-09-25 00:57:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 00:57:19,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:19,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:19,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 00:57:19,968 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:19,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-09-25 00:57:19,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:19,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345984140] [2020-09-25 00:57:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:20,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:20,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:57:20,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:20,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 00:57:20,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 00:57:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:20,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:20,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:20,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:20,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:20,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:20,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:20,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:20,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:20,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345984140] [2020-09-25 00:57:20,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:20,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:20,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010166841] [2020-09-25 00:57:20,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:20,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:20,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:20,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:20,054 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states. [2020-09-25 00:57:20,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:20,221 INFO L93 Difference]: Finished difference Result 35373 states and 43563 transitions. [2020-09-25 00:57:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:20,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-25 00:57:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:20,245 INFO L225 Difference]: With dead ends: 35373 [2020-09-25 00:57:20,246 INFO L226 Difference]: Without dead ends: 12075 [2020-09-25 00:57:20,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:20,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12075 states. [2020-09-25 00:57:20,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12075 to 12075. [2020-09-25 00:57:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 00:57:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14378 transitions. [2020-09-25 00:57:21,011 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14378 transitions. Word has length 75 [2020-09-25 00:57:21,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:21,012 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14378 transitions. [2020-09-25 00:57:21,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14378 transitions. [2020-09-25 00:57:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 00:57:21,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:21,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:21,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 00:57:21,029 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:21,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2093741743, now seen corresponding path program 1 times [2020-09-25 00:57:21,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:21,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362725908] [2020-09-25 00:57:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:21,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:21,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 00:57:21,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:21,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:57:21,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 00:57:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:57:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:21,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:21,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:21,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:21,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:21,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:21,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362725908] [2020-09-25 00:57:21,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:21,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:21,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213095903] [2020-09-25 00:57:21,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:21,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:21,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:21,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:21,136 INFO L87 Difference]: Start difference. First operand 12075 states and 14378 transitions. Second operand 3 states. [2020-09-25 00:57:21,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:21,206 INFO L93 Difference]: Finished difference Result 12075 states and 14378 transitions. [2020-09-25 00:57:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:21,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-09-25 00:57:21,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:21,207 INFO L225 Difference]: With dead ends: 12075 [2020-09-25 00:57:21,207 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:57:21,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:21,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:57:21,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:57:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:57:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:57:21,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-09-25 00:57:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:21,226 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:57:21,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:57:21,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:57:21,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 00:57:21,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:57:21,267 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 00:57:21,268 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:57:21,268 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:57:21,268 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:57:21,268 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:57:21,268 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:57:21,268 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 149) no Hoare annotation was computed. [2020-09-25 00:57:21,269 INFO L268 CegarLoopResult]: For program point L85-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,269 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 00:57:21,269 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-25 00:57:21,269 INFO L268 CegarLoopResult]: For program point L69-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,269 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 00:57:21,270 INFO L268 CegarLoopResult]: For program point L119-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,270 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 00:57:21,271 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-25 00:57:21,271 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 00:57:21,271 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 00:57:21,272 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-25 00:57:21,272 INFO L268 CegarLoopResult]: For program point L37-2(line 37) no Hoare annotation was computed. [2020-09-25 00:57:21,272 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-25 00:57:21,272 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 00:57:21,272 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 00:57:21,273 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 00:57:21,273 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 149) no Hoare annotation was computed. [2020-09-25 00:57:21,273 INFO L268 CegarLoopResult]: For program point L104-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,273 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-09-25 00:57:21,273 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-25 00:57:21,274 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 00:57:21,274 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 00:57:21,274 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-25 00:57:21,274 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 00:57:21,274 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 00:57:21,275 INFO L268 CegarLoopResult]: For program point L89-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,275 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 00:57:21,275 INFO L271 CegarLoopResult]: At program point L139-1(lines 36 144) the Hoare annotation is: true [2020-09-25 00:57:21,275 INFO L268 CegarLoopResult]: For program point L73-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,275 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 00:57:21,276 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-25 00:57:21,276 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 00:57:21,276 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 00:57:21,276 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 00:57:21,276 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 00:57:21,277 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-25 00:57:21,277 INFO L264 CegarLoopResult]: At program point L140-1(lines 5 149) the Hoare annotation is: false [2020-09-25 00:57:21,277 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 00:57:21,277 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 00:57:21,277 INFO L268 CegarLoopResult]: For program point L124-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,278 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 00:57:21,278 INFO L268 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-09-25 00:57:21,278 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 00:57:21,278 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 00:57:21,278 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 00:57:21,279 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-25 00:57:21,279 INFO L268 CegarLoopResult]: For program point L109-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,279 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 00:57:21,279 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 00:57:21,280 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 00:57:21,280 INFO L268 CegarLoopResult]: For program point L93-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,280 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 00:57:21,280 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 00:57:21,281 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 00:57:21,281 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-25 00:57:21,281 INFO L268 CegarLoopResult]: For program point L77-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,281 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-25 00:57:21,282 INFO L268 CegarLoopResult]: For program point L61(lines 61 63) no Hoare annotation was computed. [2020-09-25 00:57:21,283 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 00:57:21,284 INFO L268 CegarLoopResult]: For program point L61-2(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,284 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-25 00:57:21,284 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-25 00:57:21,284 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 00:57:21,284 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 00:57:21,284 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 00:57:21,285 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 00:57:21,285 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-25 00:57:21,285 INFO L271 CegarLoopResult]: At program point L145(lines 5 149) the Hoare annotation is: true [2020-09-25 00:57:21,285 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 00:57:21,285 INFO L268 CegarLoopResult]: For program point L129-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,286 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2020-09-25 00:57:21,286 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 00:57:21,286 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 149) the Hoare annotation is: true [2020-09-25 00:57:21,287 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 00:57:21,287 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-25 00:57:21,287 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 00:57:21,287 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-25 00:57:21,287 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 00:57:21,288 INFO L268 CegarLoopResult]: For program point L114-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,288 INFO L268 CegarLoopResult]: For program point L81-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,288 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 00:57:21,288 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 00:57:21,288 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 00:57:21,289 INFO L268 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-09-25 00:57:21,289 INFO L268 CegarLoopResult]: For program point L65-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,289 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 00:57:21,289 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-25 00:57:21,289 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-25 00:57:21,289 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 00:57:21,290 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 00:57:21,290 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-09-25 00:57:21,290 INFO L268 CegarLoopResult]: For program point L99-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,290 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 00:57:21,291 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-25 00:57:21,292 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 00:57:21,292 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 00:57:21,292 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 00:57:21,292 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 00:57:21,292 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 00:57:21,293 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-25 00:57:21,293 INFO L268 CegarLoopResult]: For program point L134-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 00:57:21,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:57:21 BoogieIcfgContainer [2020-09-25 00:57:21,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:57:21,320 INFO L168 Benchmark]: Toolchain (without parser) took 8132.08 ms. Allocated memory was 139.5 MB in the beginning and 500.2 MB in the end (delta: 360.7 MB). Free memory was 102.8 MB in the beginning and 340.9 MB in the end (delta: -238.1 MB). Peak memory consumption was 122.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:21,322 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-25 00:57:21,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.35 ms. Allocated memory is still 139.5 MB. Free memory was 102.4 MB in the beginning and 91.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:21,330 INFO L168 Benchmark]: Boogie Preprocessor took 134.86 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.7 MB in the beginning and 179.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:21,333 INFO L168 Benchmark]: RCFGBuilder took 505.43 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 156.0 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:21,335 INFO L168 Benchmark]: TraceAbstraction took 7021.15 ms. Allocated memory was 201.9 MB in the beginning and 500.2 MB in the end (delta: 298.3 MB). Free memory was 155.0 MB in the beginning and 340.9 MB in the end (delta: -185.9 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:21,345 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 449.35 ms. Allocated memory is still 139.5 MB. Free memory was 102.4 MB in the beginning and 91.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.86 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.7 MB in the beginning and 179.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.43 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 156.0 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7021.15 ms. Allocated memory was 201.9 MB in the beginning and 500.2 MB in the end (delta: 298.3 MB). Free memory was 155.0 MB in the beginning and 340.9 MB in the end (delta: -185.9 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 147]: 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: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2944 SDtfs, 1068 SDslu, 2096 SDs, 0 SdLazy, 89 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12075occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 5630 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 521 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1287 NumberOfCodeBlocks, 1287 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1269 ConstructedInterpolants, 0 QuantifiedInterpolants, 113709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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...