/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-tiling/skipped.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:14:08,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:14:08,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:14:08,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:14:08,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:14:08,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:14:08,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:14:08,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:14:08,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:14:08,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:14:08,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:14:08,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:14:08,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:14:08,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:14:08,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:14:08,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:14:08,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:14:08,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:14:08,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:14:08,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:14:08,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:14:08,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:14:08,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:14:08,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:14:08,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:14:08,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:14:08,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:14:08,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:14:08,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:14:08,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:14:08,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:14:08,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:14:08,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:14:08,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:14:08,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:14:08,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:14:08,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:14:08,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:14:08,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:14:08,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:14:08,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:14:08,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:14:08,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:14:08,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:14:08,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:14:08,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:14:08,540 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:14:08,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:14:08,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:14:08,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:14:08,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:14:08,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:14:08,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:14:08,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:14:08,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:14:08,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:14:08,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:14:08,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:14:08,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:14:08,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:14:08,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:14:08,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:14:08,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:14:08,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:14:08,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:14:08,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:14:08,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:14:08,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:14:08,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:14:08,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:14:08,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:14:08,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:14:08,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:14:09,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:14:09,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:14:09,031 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:14:09,032 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:14:09,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/skipped.c [2020-10-29 04:14:09,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8ef5fde5/0744cb7d827b4a9da6188eba60e77e3a/FLAG6caf1c5fb [2020-10-29 04:14:09,758 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:14:09,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/skipped.c [2020-10-29 04:14:09,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8ef5fde5/0744cb7d827b4a9da6188eba60e77e3a/FLAG6caf1c5fb [2020-10-29 04:14:10,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8ef5fde5/0744cb7d827b4a9da6188eba60e77e3a [2020-10-29 04:14:10,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:14:10,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:14:10,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:14:10,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:14:10,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:14:10,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ea2b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10, skipping insertion in model container [2020-10-29 04:14:10,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:14:10,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:14:10,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:14:10,388 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:14:10,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:14:10,433 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:14:10,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10 WrapperNode [2020-10-29 04:14:10,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:14:10,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:14:10,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:14:10,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:14:10,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... [2020-10-29 04:14:10,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:14:10,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:14:10,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:14:10,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:14:10,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:14:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:14:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:14:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:14:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:14:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:14:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:14:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:14:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:14:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:14:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:14:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:14:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:14:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:14:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 04:14:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:14:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 04:14:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:14:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:14:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:14:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:14:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:14:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:14:10,981 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:14:10,981 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 04:14:10,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:14:10 BoogieIcfgContainer [2020-10-29 04:14:10,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:14:10,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:14:10,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:14:10,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:14:10,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:14:10" (1/3) ... [2020-10-29 04:14:10,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b34d5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:14:10, skipping insertion in model container [2020-10-29 04:14:10,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:10" (2/3) ... [2020-10-29 04:14:10,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b34d5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:14:10, skipping insertion in model container [2020-10-29 04:14:10,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:14:10" (3/3) ... [2020-10-29 04:14:10,995 INFO L111 eAbstractionObserver]: Analyzing ICFG skipped.c [2020-10-29 04:14:11,011 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:14:11,017 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:14:11,035 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:14:11,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:14:11,086 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:14:11,086 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:14:11,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:14:11,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:14:11,087 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:14:11,087 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:14:11,087 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:14:11,118 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-29 04:14:11,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:14:11,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:11,127 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] [2020-10-29 04:14:11,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:11,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:11,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1434902792, now seen corresponding path program 1 times [2020-10-29 04:14:11,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:11,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804573313] [2020-10-29 04:14:11,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:11,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:11,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:12,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:12,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:12,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:14:12,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:14:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-10-29 04:14:12,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:12,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:14:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 04:14:12,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 04:14:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:12,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:12,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:12,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:12,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:14:12,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:12,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:12,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:12,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 04:14:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:12,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:12,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:12,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:12,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:14:12,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:12,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:14:12,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804573313] [2020-10-29 04:14:12,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:14:12,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 04:14:12,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184458615] [2020-10-29 04:14:12,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:14:12,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:14:12,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:14:12,797 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 5 states. [2020-10-29 04:14:13,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:13,078 INFO L93 Difference]: Finished difference Result 82 states and 111 transitions. [2020-10-29 04:14:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:14:13,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-29 04:14:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:13,090 INFO L225 Difference]: With dead ends: 82 [2020-10-29 04:14:13,091 INFO L226 Difference]: Without dead ends: 40 [2020-10-29 04:14:13,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:14:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-29 04:14:13,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2020-10-29 04:14:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-29 04:14:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-29 04:14:13,148 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 23 [2020-10-29 04:14:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:13,149 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-29 04:14:13,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:14:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-29 04:14:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-29 04:14:13,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:13,151 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] [2020-10-29 04:14:13,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:14:13,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1495537627, now seen corresponding path program 1 times [2020-10-29 04:14:13,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:13,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110430] [2020-10-29 04:14:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:13,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:13,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 04:14:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1125 [2020-10-29 04:14:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:14,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:14:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:14:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 04:14:14,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:14,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:14,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 04:14:14,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:14,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:14,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:14,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:14,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:14,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:14,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:14:14,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:14,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:14,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:14:14,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110430] [2020-10-29 04:14:14,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:14,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:14:14,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511533475] [2020-10-29 04:14:14,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:14:14,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:14,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:14:14,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:14:14,673 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2020-10-29 04:14:15,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:15,205 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-10-29 04:14:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:14:15,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-29 04:14:15,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:15,208 INFO L225 Difference]: With dead ends: 63 [2020-10-29 04:14:15,208 INFO L226 Difference]: Without dead ends: 60 [2020-10-29 04:14:15,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:14:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-29 04:14:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 48. [2020-10-29 04:14:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-29 04:14:15,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2020-10-29 04:14:15,223 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 30 [2020-10-29 04:14:15,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:15,223 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2020-10-29 04:14:15,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:14:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2020-10-29 04:14:15,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-29 04:14:15,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:15,225 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] [2020-10-29 04:14:15,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:14:15,226 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:15,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:15,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1237372189, now seen corresponding path program 1 times [2020-10-29 04:14:15,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:15,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517656812] [2020-10-29 04:14:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:15,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:15,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 04:14:15,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-29 04:14:15,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:15,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:14:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:14:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:16,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:16,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:16,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:16,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:16,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:16,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:16,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:16,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:16,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:16,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:16,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:16,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:16,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:14:16,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517656812] [2020-10-29 04:14:16,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:16,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:14:16,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739905752] [2020-10-29 04:14:16,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:14:16,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:16,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:14:16,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:14:16,135 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 11 states. [2020-10-29 04:14:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:16,586 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2020-10-29 04:14:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:14:16,587 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-10-29 04:14:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:16,590 INFO L225 Difference]: With dead ends: 67 [2020-10-29 04:14:16,590 INFO L226 Difference]: Without dead ends: 64 [2020-10-29 04:14:16,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:14:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-29 04:14:16,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 41. [2020-10-29 04:14:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-29 04:14:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-29 04:14:16,602 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 30 [2020-10-29 04:14:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:16,603 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-29 04:14:16,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:14:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-29 04:14:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 04:14:16,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:16,605 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:16,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:14:16,605 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:16,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:16,606 INFO L82 PathProgramCache]: Analyzing trace with hash -635529518, now seen corresponding path program 1 times [2020-10-29 04:14:16,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:16,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160675293] [2020-10-29 04:14:16,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:17,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:17,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:14:17,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-29 04:14:17,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:17,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:14:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:14:17,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:17,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:17,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:17,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:17,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:17,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:17,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:14:17,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:17,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:17,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:17,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:17,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:17,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:17,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:17,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:17,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:17,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:17,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:17,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:17,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:17,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:14:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:17,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:17,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:17,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:17,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:17,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:17,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:14:17,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160675293] [2020-10-29 04:14:17,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:17,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:14:17,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150964876] [2020-10-29 04:14:17,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:14:17,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:17,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:14:17,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:14:17,285 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 10 states. [2020-10-29 04:14:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:17,913 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2020-10-29 04:14:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 04:14:17,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-10-29 04:14:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:17,919 INFO L225 Difference]: With dead ends: 71 [2020-10-29 04:14:17,919 INFO L226 Difference]: Without dead ends: 68 [2020-10-29 04:14:17,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:14:17,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-29 04:14:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2020-10-29 04:14:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-29 04:14:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2020-10-29 04:14:17,945 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 38 [2020-10-29 04:14:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:17,946 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2020-10-29 04:14:17,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:14:17,947 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2020-10-29 04:14:17,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 04:14:17,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:17,953 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:17,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:14:17,953 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:17,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:17,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1665293072, now seen corresponding path program 1 times [2020-10-29 04:14:17,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:17,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838295787] [2020-10-29 04:14:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:17,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:18,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:18,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:14:18,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-29 04:14:18,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:18,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:14:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:14:18,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:14:18,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:18,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:18,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:18,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:14:18,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:18,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:18,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:14:18,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:18,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:18,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:18,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:18,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:18,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:18,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:18,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:18,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:18,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:14:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:18,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:18,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:18,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:18,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:18,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:18,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:18,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:14:18,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838295787] [2020-10-29 04:14:18,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:18,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:14:18,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185904803] [2020-10-29 04:14:18,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:14:18,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:18,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:14:18,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:14:18,803 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand 11 states. [2020-10-29 04:14:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:19,372 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2020-10-29 04:14:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:14:19,375 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-10-29 04:14:19,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:19,376 INFO L225 Difference]: With dead ends: 75 [2020-10-29 04:14:19,377 INFO L226 Difference]: Without dead ends: 72 [2020-10-29 04:14:19,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:14:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-29 04:14:19,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 49. [2020-10-29 04:14:19,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-29 04:14:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-10-29 04:14:19,403 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 38 [2020-10-29 04:14:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:19,404 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-10-29 04:14:19,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:14:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-10-29 04:14:19,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 04:14:19,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:19,407 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:19,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:14:19,408 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:19,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:19,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1628588159, now seen corresponding path program 2 times [2020-10-29 04:14:19,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:19,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117793171] [2020-10-29 04:14:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:19,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:19,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:19,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 04:14:21,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:14:21,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2043 [2020-10-29 04:14:21,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:14:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 04:14:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 04:14:21,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:21,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:21,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:21,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:14:21,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:21,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:21,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 04:14:21,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:21,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:21,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:14:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:21,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:21,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:14:21,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:14:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:21,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:21,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:21,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:14:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 04:14:21,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117793171] [2020-10-29 04:14:21,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:21,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:14:21,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376918727] [2020-10-29 04:14:21,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:14:21,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:21,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:14:21,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:14:21,912 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 10 states. [2020-10-29 04:14:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:22,771 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2020-10-29 04:14:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 04:14:22,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-10-29 04:14:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:22,773 INFO L225 Difference]: With dead ends: 89 [2020-10-29 04:14:22,774 INFO L226 Difference]: Without dead ends: 60 [2020-10-29 04:14:22,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:14:22,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-29 04:14:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-29 04:14:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-29 04:14:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-10-29 04:14:22,786 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 46 [2020-10-29 04:14:22,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:22,787 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-10-29 04:14:22,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:14:22,787 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-10-29 04:14:22,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:14:22,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:22,788 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:22,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:14:22,789 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:22,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:22,789 INFO L82 PathProgramCache]: Analyzing trace with hash -254124798, now seen corresponding path program 3 times [2020-10-29 04:14:22,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:22,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679620363] [2020-10-29 04:14:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:22,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 04:14:23,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-10-29 04:14:23,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:23,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:14:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:23,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 04:14:23,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:23,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:23,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:23,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:23,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:23,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:23,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:23,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-29 04:14:23,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:23,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:23,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:23,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:23,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:23,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:23,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:24,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:14:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:24,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:24,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:24,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:24,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 04:14:24,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:24,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:24,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:24,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:24,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:24,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:24,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:14:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:24,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:24,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:24,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:14:24,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:24,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:24,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 04:14:24,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679620363] [2020-10-29 04:14:24,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:24,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:14:24,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921702157] [2020-10-29 04:14:24,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:14:24,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:24,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:14:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:14:24,074 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 13 states. [2020-10-29 04:14:24,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:24,871 INFO L93 Difference]: Finished difference Result 105 states and 126 transitions. [2020-10-29 04:14:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:14:24,873 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-29 04:14:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:24,876 INFO L225 Difference]: With dead ends: 105 [2020-10-29 04:14:24,876 INFO L226 Difference]: Without dead ends: 102 [2020-10-29 04:14:24,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:14:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-29 04:14:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 75. [2020-10-29 04:14:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-29 04:14:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2020-10-29 04:14:24,910 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 51 [2020-10-29 04:14:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:24,915 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2020-10-29 04:14:24,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:14:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2020-10-29 04:14:24,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:14:24,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:24,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:24,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:14:24,921 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:24,922 INFO L82 PathProgramCache]: Analyzing trace with hash -763597888, now seen corresponding path program 1 times [2020-10-29 04:14:24,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:24,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106264179] [2020-10-29 04:14:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 997 [2020-10-29 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:14:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 04:14:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:26,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:26,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:26,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:26,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:26,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-29 04:14:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:14:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:26,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:26,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:26,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:26,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:26,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:26,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:14:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:26,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:26,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:26,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:26,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 04:14:26,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106264179] [2020-10-29 04:14:26,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:26,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:14:26,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092570433] [2020-10-29 04:14:26,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:14:26,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:26,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:14:26,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:14:26,232 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand 14 states. [2020-10-29 04:14:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:27,054 INFO L93 Difference]: Finished difference Result 109 states and 129 transitions. [2020-10-29 04:14:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 04:14:27,055 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-10-29 04:14:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:27,056 INFO L225 Difference]: With dead ends: 109 [2020-10-29 04:14:27,056 INFO L226 Difference]: Without dead ends: 106 [2020-10-29 04:14:27,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:14:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-29 04:14:27,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 62. [2020-10-29 04:14:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-29 04:14:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2020-10-29 04:14:27,070 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 51 [2020-10-29 04:14:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:27,070 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2020-10-29 04:14:27,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:14:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2020-10-29 04:14:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 04:14:27,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:27,072 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:27,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:14:27,072 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:27,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1199365807, now seen corresponding path program 4 times [2020-10-29 04:14:27,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:27,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093247126] [2020-10-29 04:14:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:27,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:28,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 04:14:28,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 996 [2020-10-29 04:14:28,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:28,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:14:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 04:14:28,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:28,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:28,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:28,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:28,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:28,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:14:28,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:28,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:28,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:28,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:28,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:28,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:28,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:28,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:28,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:28,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:14:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:28,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:28,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:28,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:28,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:28,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:28,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:14:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:28,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:28,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:28,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:14:28,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:28,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:28,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:28,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:14:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:28,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:28,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:28,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:28,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:28,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-29 04:14:28,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093247126] [2020-10-29 04:14:28,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:28,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:14:28,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361690085] [2020-10-29 04:14:28,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:14:28,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:28,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:14:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:14:28,459 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 13 states. [2020-10-29 04:14:29,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:29,550 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2020-10-29 04:14:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:14:29,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2020-10-29 04:14:29,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:29,552 INFO L225 Difference]: With dead ends: 111 [2020-10-29 04:14:29,552 INFO L226 Difference]: Without dead ends: 108 [2020-10-29 04:14:29,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:14:29,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-29 04:14:29,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 89. [2020-10-29 04:14:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-29 04:14:29,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 103 transitions. [2020-10-29 04:14:29,582 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 103 transitions. Word has length 59 [2020-10-29 04:14:29,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:29,583 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 103 transitions. [2020-10-29 04:14:29,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:14:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2020-10-29 04:14:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 04:14:29,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:29,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:29,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:14:29,592 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:29,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:29,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1044617491, now seen corresponding path program 1 times [2020-10-29 04:14:29,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:29,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409056827] [2020-10-29 04:14:29,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:29,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:29,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 04:14:30,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-10-29 04:14:30,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:14:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:14:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 04:14:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:30,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:30,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:30,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 04:14:30,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:30,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:30,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:30,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:30,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:30,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:30,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:14:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:30,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:30,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:30,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:30,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:30,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:30,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:14:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:30,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:30,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:30,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:30,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:30,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:14:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:30,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:30,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:30,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:14:30,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:30,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:30,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:30,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-29 04:14:30,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409056827] [2020-10-29 04:14:30,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:30,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:14:30,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674015722] [2020-10-29 04:14:30,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:14:30,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:30,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:14:30,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:14:30,988 INFO L87 Difference]: Start difference. First operand 89 states and 103 transitions. Second operand 14 states. [2020-10-29 04:14:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:32,064 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2020-10-29 04:14:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:14:32,065 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-10-29 04:14:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:32,067 INFO L225 Difference]: With dead ends: 121 [2020-10-29 04:14:32,067 INFO L226 Difference]: Without dead ends: 118 [2020-10-29 04:14:32,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2020-10-29 04:14:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-29 04:14:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 70. [2020-10-29 04:14:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-29 04:14:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2020-10-29 04:14:32,088 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 59 [2020-10-29 04:14:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:32,090 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2020-10-29 04:14:32,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:14:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2020-10-29 04:14:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 04:14:32,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:32,091 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:32,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:14:32,092 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:32,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1974639780, now seen corresponding path program 5 times [2020-10-29 04:14:32,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:32,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532794896] [2020-10-29 04:14:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:32,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:35,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:35,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 04:14:35,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:14:35,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3638 [2020-10-29 04:14:35,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:35,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:14:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 04:14:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 04:14:35,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:36,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:36,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:36,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:36,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:14:36,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:36,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:36,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 04:14:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:36,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:36,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:36,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 04:14:36,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:36,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:36,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:36,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:14:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:36,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:14:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:36,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:36,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:36,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:36,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:14:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:36,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:36,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:36,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:36,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:36,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:14:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:36,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:36,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:36,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:36,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-29 04:14:36,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532794896] [2020-10-29 04:14:36,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:36,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:14:36,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152657374] [2020-10-29 04:14:36,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:14:36,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:36,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:14:36,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:14:36,202 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand 13 states. [2020-10-29 04:14:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:37,441 INFO L93 Difference]: Finished difference Result 173 states and 194 transitions. [2020-10-29 04:14:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 04:14:37,441 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2020-10-29 04:14:37,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:37,443 INFO L225 Difference]: With dead ends: 173 [2020-10-29 04:14:37,443 INFO L226 Difference]: Without dead ends: 84 [2020-10-29 04:14:37,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 04:14:37,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-29 04:14:37,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2020-10-29 04:14:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-29 04:14:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-10-29 04:14:37,458 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 67 [2020-10-29 04:14:37,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:37,459 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-10-29 04:14:37,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:14:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-10-29 04:14:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 04:14:37,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:37,460 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:37,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:14:37,460 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:37,461 INFO L82 PathProgramCache]: Analyzing trace with hash -473352651, now seen corresponding path program 6 times [2020-10-29 04:14:37,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:37,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520698588] [2020-10-29 04:14:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:42,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 04:14:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:14:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-29 04:14:42,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:42,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:14:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 04:14:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:42,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:42,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:42,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:42,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:42,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:42,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:42,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:42,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 04:14:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:42,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:42,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:42,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:14:42,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:42,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:42,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:42,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 04:14:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:42,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:42,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:42,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:42,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:42,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:42,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:42,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:14:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:42,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:42,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:42,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:42,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:42,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:42,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:14:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:42,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:42,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:42,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:42,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:42,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:14:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:42,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:14:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:43,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:14:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 34 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-29 04:14:43,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520698588] [2020-10-29 04:14:43,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:43,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:14:43,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895439097] [2020-10-29 04:14:43,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:14:43,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:43,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:14:43,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:14:43,023 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 12 states. [2020-10-29 04:14:43,796 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-29 04:14:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:43,938 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2020-10-29 04:14:43,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:14:43,939 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 76 [2020-10-29 04:14:43,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:43,940 INFO L225 Difference]: With dead ends: 146 [2020-10-29 04:14:43,940 INFO L226 Difference]: Without dead ends: 81 [2020-10-29 04:14:43,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:14:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-29 04:14:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-29 04:14:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-29 04:14:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-10-29 04:14:43,955 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 76 [2020-10-29 04:14:43,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:43,955 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-10-29 04:14:43,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:14:43,955 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-10-29 04:14:43,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-29 04:14:43,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:43,956 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:43,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:14:43,957 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:43,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1479823693, now seen corresponding path program 7 times [2020-10-29 04:14:43,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:43,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228741093] [2020-10-29 04:14:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:43,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 04:14:48,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-29 04:14:48,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:14:48,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:14:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 04:14:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:49,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 04:14:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:49,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 04:14:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:49,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 04:14:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:14:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:14:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:49,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-29 04:14:49,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228741093] [2020-10-29 04:14:49,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:49,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:14:49,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015548780] [2020-10-29 04:14:49,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:14:49,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:49,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:14:49,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:14:49,217 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 14 states. [2020-10-29 04:14:49,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:49,982 INFO L93 Difference]: Finished difference Result 169 states and 193 transitions. [2020-10-29 04:14:49,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:14:49,983 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 78 [2020-10-29 04:14:49,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:49,984 INFO L225 Difference]: With dead ends: 169 [2020-10-29 04:14:49,985 INFO L226 Difference]: Without dead ends: 100 [2020-10-29 04:14:49,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:14:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-29 04:14:50,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2020-10-29 04:14:50,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-29 04:14:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2020-10-29 04:14:50,004 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 78 [2020-10-29 04:14:50,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:50,004 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2020-10-29 04:14:50,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:14:50,005 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2020-10-29 04:14:50,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 04:14:50,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:50,006 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:50,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:14:50,006 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:50,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1964113841, now seen corresponding path program 8 times [2020-10-29 04:14:50,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:50,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359386520] [2020-10-29 04:14:50,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:50,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:14:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 04:14:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:56,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:56,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:56,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:56,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:14:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:56,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:56,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:14:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:56,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:56,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:56,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:56,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:56,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:14:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:56,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:56,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:56,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 04:14:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:56,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:56,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:14:56,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:56,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:14:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 04:14:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:56,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:56,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 29 proven. 48 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-29 04:14:56,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359386520] [2020-10-29 04:14:56,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:56,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:14:56,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031475970] [2020-10-29 04:14:56,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:14:56,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:56,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:14:56,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:14:56,113 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand 22 states. [2020-10-29 04:14:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:57,514 INFO L93 Difference]: Finished difference Result 181 states and 202 transitions. [2020-10-29 04:14:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 04:14:57,515 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 80 [2020-10-29 04:14:57,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:57,516 INFO L225 Difference]: With dead ends: 181 [2020-10-29 04:14:57,517 INFO L226 Difference]: Without dead ends: 86 [2020-10-29 04:14:57,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=258, Invalid=1002, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 04:14:57,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-29 04:14:57,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-10-29 04:14:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-29 04:14:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2020-10-29 04:14:57,537 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 80 [2020-10-29 04:14:57,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:57,537 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2020-10-29 04:14:57,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:14:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2020-10-29 04:14:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 04:14:57,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:57,539 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:57,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:14:57,539 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:57,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:57,539 INFO L82 PathProgramCache]: Analyzing trace with hash 168298799, now seen corresponding path program 9 times [2020-10-29 04:14:57,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:57,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225340735] [2020-10-29 04:14:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:57,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:58,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:58,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:58,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 04:15:02,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:02,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:02,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:02,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:02,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:02,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:02,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:02,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:02,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:02,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:15:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:02,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:02,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 04:15:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:02,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:02,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:15:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:02,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:02,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:02,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:02,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:02,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:15:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:02,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:02,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:02,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:02,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:02,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:02,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:02,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:02,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:02,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:02,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 8 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 04:15:02,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225340735] [2020-10-29 04:15:02,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:02,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:15:02,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058475965] [2020-10-29 04:15:02,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:15:02,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:02,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:15:02,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:15:02,959 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand 16 states. [2020-10-29 04:15:04,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:04,359 INFO L93 Difference]: Finished difference Result 171 states and 206 transitions. [2020-10-29 04:15:04,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 04:15:04,360 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-29 04:15:04,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:04,363 INFO L225 Difference]: With dead ends: 171 [2020-10-29 04:15:04,363 INFO L226 Difference]: Without dead ends: 168 [2020-10-29 04:15:04,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=148, Invalid=1042, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 04:15:04,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-29 04:15:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 114. [2020-10-29 04:15:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 04:15:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2020-10-29 04:15:04,385 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 82 [2020-10-29 04:15:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:04,385 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2020-10-29 04:15:04,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:15:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2020-10-29 04:15:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 04:15:04,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:04,386 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:04,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 04:15:04,387 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:04,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1881089043, now seen corresponding path program 2 times [2020-10-29 04:15:04,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:04,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883397429] [2020-10-29 04:15:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:05,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:05,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 04:15:09,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 04:15:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:09,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:09,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:09,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:15:09,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:09,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:09,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:09,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:09,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:09,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:09,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:09,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:09,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:15:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:09,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:09,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:09,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:09,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:09,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:09,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 04:15:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:09,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:09,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:09,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:09,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:09,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:15:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:09,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:09,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:09,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:09,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:15:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:09,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 8 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 04:15:09,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883397429] [2020-10-29 04:15:09,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:09,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:15:09,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243734445] [2020-10-29 04:15:09,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:15:09,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:09,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:15:09,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:15:09,900 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 17 states. [2020-10-29 04:15:11,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:11,273 INFO L93 Difference]: Finished difference Result 175 states and 209 transitions. [2020-10-29 04:15:11,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 04:15:11,274 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2020-10-29 04:15:11,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:11,276 INFO L225 Difference]: With dead ends: 175 [2020-10-29 04:15:11,276 INFO L226 Difference]: Without dead ends: 172 [2020-10-29 04:15:11,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=1047, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 04:15:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-29 04:15:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 93. [2020-10-29 04:15:11,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-29 04:15:11,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2020-10-29 04:15:11,291 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 82 [2020-10-29 04:15:11,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:11,292 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2020-10-29 04:15:11,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:15:11,292 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2020-10-29 04:15:11,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 04:15:11,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:11,293 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:11,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 04:15:11,293 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:11,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:11,293 INFO L82 PathProgramCache]: Analyzing trace with hash -297398820, now seen corresponding path program 10 times [2020-10-29 04:15:11,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:11,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675011351] [2020-10-29 04:15:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:11,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:11,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:11,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:15,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 04:15:15,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:15:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4443 [2020-10-29 04:15:15,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:15,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:15:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:15:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 04:15:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:15:16,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:16,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:16,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:16,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:16,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:15:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:16,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:15:16,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:16,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:16,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:16,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 04:15:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:16,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:16,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:16,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:16,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:16,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:15:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:16,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:16,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:16,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:16,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:15:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:16,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:16,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:16,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 04:15:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:16,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:16,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:16,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:16,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:16,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:16,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:16,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-29 04:15:16,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675011351] [2020-10-29 04:15:16,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:16,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:15:16,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415367001] [2020-10-29 04:15:16,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:15:16,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:16,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:15:16,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:15:16,187 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 16 states. [2020-10-29 04:15:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:17,848 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2020-10-29 04:15:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 04:15:17,848 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2020-10-29 04:15:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:17,850 INFO L225 Difference]: With dead ends: 183 [2020-10-29 04:15:17,851 INFO L226 Difference]: Without dead ends: 180 [2020-10-29 04:15:17,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=1179, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 04:15:17,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-29 04:15:17,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 128. [2020-10-29 04:15:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-29 04:15:17,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 146 transitions. [2020-10-29 04:15:17,878 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 146 transitions. Word has length 90 [2020-10-29 04:15:17,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:17,878 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 146 transitions. [2020-10-29 04:15:17,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:15:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 146 transitions. [2020-10-29 04:15:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 04:15:17,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:17,882 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:17,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 04:15:17,882 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:17,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:17,883 INFO L82 PathProgramCache]: Analyzing trace with hash -778479078, now seen corresponding path program 2 times [2020-10-29 04:15:17,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:17,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258472516] [2020-10-29 04:15:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:17,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4911 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 04:15:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:23,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:23,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:23,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:23,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:23,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:23,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:15:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:23,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:23,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:23,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 04:15:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:23,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:15:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:23,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:23,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:15:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:23,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:23,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:23,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:23,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 04:15:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:23,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:23,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-29 04:15:23,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258472516] [2020-10-29 04:15:23,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:23,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:15:23,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193547307] [2020-10-29 04:15:23,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:15:23,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:23,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:15:23,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:15:23,220 INFO L87 Difference]: Start difference. First operand 128 states and 146 transitions. Second operand 17 states. [2020-10-29 04:15:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:24,903 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2020-10-29 04:15:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 04:15:24,904 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 90 [2020-10-29 04:15:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:24,906 INFO L225 Difference]: With dead ends: 199 [2020-10-29 04:15:24,906 INFO L226 Difference]: Without dead ends: 196 [2020-10-29 04:15:24,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=179, Invalid=1461, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 04:15:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-29 04:15:24,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 101. [2020-10-29 04:15:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-29 04:15:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2020-10-29 04:15:24,923 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 90 [2020-10-29 04:15:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:24,923 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2020-10-29 04:15:24,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:15:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2020-10-29 04:15:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 04:15:24,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:24,925 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:24,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 04:15:24,925 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:24,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:24,926 INFO L82 PathProgramCache]: Analyzing trace with hash -125889143, now seen corresponding path program 11 times [2020-10-29 04:15:24,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:24,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131797511] [2020-10-29 04:15:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:24,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:24,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:25,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:15:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 04:15:29,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 04:15:29,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:30,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:30,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:30,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:30,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:15:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 04:15:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:15:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:15:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 04:15:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 04:15:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:30,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:30,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:30,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:30,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 63 proven. 39 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-29 04:15:30,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131797511] [2020-10-29 04:15:30,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:30,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:15:30,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848739579] [2020-10-29 04:15:30,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:15:30,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:30,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:15:30,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:15:30,682 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand 16 states. [2020-10-29 04:15:32,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:32,280 INFO L93 Difference]: Finished difference Result 171 states and 184 transitions. [2020-10-29 04:15:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 04:15:32,281 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 98 [2020-10-29 04:15:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:32,283 INFO L225 Difference]: With dead ends: 171 [2020-10-29 04:15:32,283 INFO L226 Difference]: Without dead ends: 110 [2020-10-29 04:15:32,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2020-10-29 04:15:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-29 04:15:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-29 04:15:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-29 04:15:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2020-10-29 04:15:32,298 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 98 [2020-10-29 04:15:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:32,298 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2020-10-29 04:15:32,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:15:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2020-10-29 04:15:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 04:15:32,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:32,299 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:32,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 04:15:32,300 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:32,300 INFO L82 PathProgramCache]: Analyzing trace with hash 762204960, now seen corresponding path program 12 times [2020-10-29 04:15:32,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:32,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899055103] [2020-10-29 04:15:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:36,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-29 04:15:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:37,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:37,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:37,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:37,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:15:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:15:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:15:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:37,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:37,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:15:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:37,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:15:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:37,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:15:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:37,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:37,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:37,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:37,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:37,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:37,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 12 proven. 106 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-29 04:15:37,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899055103] [2020-10-29 04:15:37,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:37,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:15:37,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066304756] [2020-10-29 04:15:37,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:15:37,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:37,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:15:37,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:15:37,783 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand 19 states. [2020-10-29 04:15:40,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:40,538 INFO L93 Difference]: Finished difference Result 265 states and 329 transitions. [2020-10-29 04:15:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-29 04:15:40,539 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-29 04:15:40,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:40,541 INFO L225 Difference]: With dead ends: 265 [2020-10-29 04:15:40,541 INFO L226 Difference]: Without dead ends: 262 [2020-10-29 04:15:40,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=345, Invalid=3077, Unknown=0, NotChecked=0, Total=3422 [2020-10-29 04:15:40,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-29 04:15:40,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 143. [2020-10-29 04:15:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-29 04:15:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 163 transitions. [2020-10-29 04:15:40,577 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 163 transitions. Word has length 103 [2020-10-29 04:15:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:40,578 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 163 transitions. [2020-10-29 04:15:40,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:15:40,578 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 163 transitions. [2020-10-29 04:15:40,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 04:15:40,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:40,579 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:40,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 04:15:40,580 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:40,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:40,580 INFO L82 PathProgramCache]: Analyzing trace with hash 964028894, now seen corresponding path program 3 times [2020-10-29 04:15:40,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:40,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825701546] [2020-10-29 04:15:40,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:40,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:42,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:45,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 04:15:45,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 04:15:45,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:46,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:15:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:15:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:15:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:46,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:15:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:15:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:15:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 12 proven. 106 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-29 04:15:46,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825701546] [2020-10-29 04:15:46,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:46,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 04:15:46,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818388909] [2020-10-29 04:15:46,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 04:15:46,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:46,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 04:15:46,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:15:46,088 INFO L87 Difference]: Start difference. First operand 143 states and 163 transitions. Second operand 20 states. [2020-10-29 04:15:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:48,673 INFO L93 Difference]: Finished difference Result 275 states and 341 transitions. [2020-10-29 04:15:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-29 04:15:48,674 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 103 [2020-10-29 04:15:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:48,677 INFO L225 Difference]: With dead ends: 275 [2020-10-29 04:15:48,677 INFO L226 Difference]: Without dead ends: 272 [2020-10-29 04:15:48,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=321, Invalid=2985, Unknown=0, NotChecked=0, Total=3306 [2020-10-29 04:15:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-29 04:15:48,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 114. [2020-10-29 04:15:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 04:15:48,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-10-29 04:15:48,699 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 103 [2020-10-29 04:15:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:48,699 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-10-29 04:15:48,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 04:15:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-10-29 04:15:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 04:15:48,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:48,701 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:48,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 04:15:48,701 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:48,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:48,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1673516749, now seen corresponding path program 13 times [2020-10-29 04:15:48,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:48,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845055394] [2020-10-29 04:15:48,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:48,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:50,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:53,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:53,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 04:15:53,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-29 04:15:53,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 04:15:53,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:53,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:15:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:15:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 04:15:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:54,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:15:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:15:54,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:15:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:15:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:15:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:54,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:15:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:15:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:54,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:15:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:15:54,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 04:15:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:54,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 112 proven. 36 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-29 04:15:54,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845055394] [2020-10-29 04:15:54,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:54,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:15:54,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171979120] [2020-10-29 04:15:54,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:15:54,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:54,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:15:54,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:15:54,089 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 19 states. [2020-10-29 04:15:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:55,528 INFO L93 Difference]: Finished difference Result 283 states and 322 transitions. [2020-10-29 04:15:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 04:15:55,533 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 111 [2020-10-29 04:15:55,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:55,534 INFO L225 Difference]: With dead ends: 283 [2020-10-29 04:15:55,535 INFO L226 Difference]: Without dead ends: 135 [2020-10-29 04:15:55,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=438, Invalid=1044, Unknown=0, NotChecked=0, Total=1482 [2020-10-29 04:15:55,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-29 04:15:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 116. [2020-10-29 04:15:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 04:15:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2020-10-29 04:15:55,551 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 111 [2020-10-29 04:15:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:55,551 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2020-10-29 04:15:55,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:15:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2020-10-29 04:15:55,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 04:15:55,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:55,552 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:55,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 04:15:55,553 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:55,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:55,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1778916751, now seen corresponding path program 14 times [2020-10-29 04:15:55,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:55,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485732000] [2020-10-29 04:15:55,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:55,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 04:16:00,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 04:16:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:16:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:00,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:00,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:16:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:00,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:16:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 04:16:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:00,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 04:16:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:00,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:16:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:00,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:16:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:00,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-29 04:16:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:00,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 48 proven. 49 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-10-29 04:16:00,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485732000] [2020-10-29 04:16:00,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:00,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:16:00,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202908195] [2020-10-29 04:16:00,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:16:00,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:00,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:16:00,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:16:00,909 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand 16 states. [2020-10-29 04:16:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:01,494 INFO L93 Difference]: Finished difference Result 213 states and 233 transitions. [2020-10-29 04:16:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:16:01,496 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 113 [2020-10-29 04:16:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:01,497 INFO L225 Difference]: With dead ends: 213 [2020-10-29 04:16:01,498 INFO L226 Difference]: Without dead ends: 119 [2020-10-29 04:16:01,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:16:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-29 04:16:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2020-10-29 04:16:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-29 04:16:01,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2020-10-29 04:16:01,520 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 113 [2020-10-29 04:16:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:01,521 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2020-10-29 04:16:01,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:16:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2020-10-29 04:16:01,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-29 04:16:01,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:01,523 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:01,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 04:16:01,523 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:01,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:01,523 INFO L82 PathProgramCache]: Analyzing trace with hash -10896431, now seen corresponding path program 15 times [2020-10-29 04:16:01,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:01,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325985068] [2020-10-29 04:16:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:01,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:03,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:04,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 04:16:06,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:16:06,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 04:16:06,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:16:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-29 04:16:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 04:16:06,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:06,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:16:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:06,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:16:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:06,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:16:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:06,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:06,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:06,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:16:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:16:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:07,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:16:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:07,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:07,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:07,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:16:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:07,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:07,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:16:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:07,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-29 04:16:07,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325985068] [2020-10-29 04:16:07,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:07,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:16:07,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865806323] [2020-10-29 04:16:07,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:16:07,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:07,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:16:07,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:16:07,043 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand 19 states. [2020-10-29 04:16:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:10,235 INFO L93 Difference]: Finished difference Result 287 states and 355 transitions. [2020-10-29 04:16:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-29 04:16:10,236 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 115 [2020-10-29 04:16:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:10,239 INFO L225 Difference]: With dead ends: 287 [2020-10-29 04:16:10,239 INFO L226 Difference]: Without dead ends: 284 [2020-10-29 04:16:10,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=360, Invalid=3422, Unknown=0, NotChecked=0, Total=3782 [2020-10-29 04:16:10,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-29 04:16:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 161. [2020-10-29 04:16:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-29 04:16:10,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2020-10-29 04:16:10,266 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 115 [2020-10-29 04:16:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:10,266 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2020-10-29 04:16:10,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:16:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2020-10-29 04:16:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-29 04:16:10,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:10,268 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:10,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 04:16:10,268 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:10,269 INFO L82 PathProgramCache]: Analyzing trace with hash -742863857, now seen corresponding path program 3 times [2020-10-29 04:16:10,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:10,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217738859] [2020-10-29 04:16:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:10,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:10,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:11,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:12,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:13,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-29 04:16:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 04:16:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:15,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:15,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:16:15,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:15,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:16:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:15,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:16:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:15,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:16:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:15,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:16:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:15,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:16:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:15,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:16:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:15,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:16:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:15,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:15,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:16:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:15,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:15,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:15,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-29 04:16:15,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217738859] [2020-10-29 04:16:15,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:15,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 04:16:15,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710561084] [2020-10-29 04:16:15,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 04:16:15,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:15,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 04:16:15,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:16:15,934 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand 20 states. [2020-10-29 04:16:19,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:19,501 INFO L93 Difference]: Finished difference Result 315 states and 394 transitions. [2020-10-29 04:16:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-29 04:16:19,502 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 115 [2020-10-29 04:16:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:19,505 INFO L225 Difference]: With dead ends: 315 [2020-10-29 04:16:19,505 INFO L226 Difference]: Without dead ends: 312 [2020-10-29 04:16:19,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1184 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=421, Invalid=4271, Unknown=0, NotChecked=0, Total=4692 [2020-10-29 04:16:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-29 04:16:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 126. [2020-10-29 04:16:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 04:16:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2020-10-29 04:16:19,527 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 115 [2020-10-29 04:16:19,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:19,527 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2020-10-29 04:16:19,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 04:16:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2020-10-29 04:16:19,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-29 04:16:19,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:19,529 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:19,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 04:16:19,529 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:19,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:19,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1796472446, now seen corresponding path program 16 times [2020-10-29 04:16:19,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:19,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653113558] [2020-10-29 04:16:19,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:19,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:19,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 04:16:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:24,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:24,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:24,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:24,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:24,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:24,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:24,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:24,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:24,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:16:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:16:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:16:25,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:16:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:16:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:25,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:16:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:16:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:16:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:16:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:25,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:16:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:25,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:16:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:25,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:25,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:25,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:25,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:25,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 144 proven. 34 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-29 04:16:25,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653113558] [2020-10-29 04:16:25,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:25,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:16:25,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126673152] [2020-10-29 04:16:25,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:16:25,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:25,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:16:25,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:16:25,100 INFO L87 Difference]: Start difference. First operand 126 states and 136 transitions. Second operand 19 states. [2020-10-29 04:16:26,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:26,797 INFO L93 Difference]: Finished difference Result 212 states and 227 transitions. [2020-10-29 04:16:26,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 04:16:26,797 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 123 [2020-10-29 04:16:26,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:26,799 INFO L225 Difference]: With dead ends: 212 [2020-10-29 04:16:26,799 INFO L226 Difference]: Without dead ends: 135 [2020-10-29 04:16:26,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=290, Invalid=1116, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 04:16:26,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-29 04:16:26,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2020-10-29 04:16:26,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-29 04:16:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2020-10-29 04:16:26,817 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 123 [2020-10-29 04:16:26,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:26,818 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2020-10-29 04:16:26,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:16:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2020-10-29 04:16:26,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-29 04:16:26,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:26,820 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:26,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 04:16:26,820 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:26,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1589687743, now seen corresponding path program 17 times [2020-10-29 04:16:26,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:26,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131102926] [2020-10-29 04:16:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:26,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:26,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:28,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:29,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:30,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:31,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 04:16:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:16:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 04:16:31,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 04:16:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 04:16:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 04:16:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:16:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:16:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 04:16:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:16:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-29 04:16:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:16:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:33,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:33,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:33,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:33,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:33,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 16 proven. 119 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-29 04:16:33,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131102926] [2020-10-29 04:16:33,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:33,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:16:33,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337276060] [2020-10-29 04:16:33,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:16:33,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:33,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:16:33,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:16:33,699 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand 24 states. [2020-10-29 04:16:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:36,401 INFO L93 Difference]: Finished difference Result 248 states and 274 transitions. [2020-10-29 04:16:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 04:16:36,402 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 128 [2020-10-29 04:16:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:36,403 INFO L225 Difference]: With dead ends: 248 [2020-10-29 04:16:36,403 INFO L226 Difference]: Without dead ends: 134 [2020-10-29 04:16:36,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=182, Invalid=1078, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 04:16:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-29 04:16:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 133. [2020-10-29 04:16:36,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-29 04:16:36,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2020-10-29 04:16:36,423 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 128 [2020-10-29 04:16:36,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:36,423 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2020-10-29 04:16:36,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 04:16:36,423 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2020-10-29 04:16:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-29 04:16:36,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:36,424 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:36,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 04:16:36,425 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:36,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1948611779, now seen corresponding path program 18 times [2020-10-29 04:16:36,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:36,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897546501] [2020-10-29 04:16:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:36,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:36,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:37,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:37,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:37,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:39,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:39,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 04:16:41,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-29 04:16:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 04:16:41,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:16:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:16:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 04:16:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 04:16:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:41,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:16:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:16:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 04:16:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 04:16:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:41,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:16:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:16:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 04:16:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:16:41,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:16:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:41,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:41,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:41,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:41,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:41,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:41,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:41,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:41,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:41,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:41,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 71 proven. 81 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-29 04:16:41,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897546501] [2020-10-29 04:16:41,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:41,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:16:41,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219428818] [2020-10-29 04:16:41,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:16:41,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:41,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:16:41,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:16:41,918 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand 19 states. [2020-10-29 04:16:42,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:42,777 INFO L93 Difference]: Finished difference Result 243 states and 267 transitions. [2020-10-29 04:16:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:16:42,778 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 130 [2020-10-29 04:16:42,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:42,780 INFO L225 Difference]: With dead ends: 243 [2020-10-29 04:16:42,780 INFO L226 Difference]: Without dead ends: 136 [2020-10-29 04:16:42,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:16:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-29 04:16:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2020-10-29 04:16:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-29 04:16:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 147 transitions. [2020-10-29 04:16:42,800 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 147 transitions. Word has length 130 [2020-10-29 04:16:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:42,800 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 147 transitions. [2020-10-29 04:16:42,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:16:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 147 transitions. [2020-10-29 04:16:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-29 04:16:42,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:42,801 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:42,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 04:16:42,802 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:42,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:42,802 INFO L82 PathProgramCache]: Analyzing trace with hash -640353989, now seen corresponding path program 19 times [2020-10-29 04:16:42,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:42,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085982317] [2020-10-29 04:16:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:42,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:43,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:44,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:44,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:45,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:45,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:45,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:46,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:46,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:46,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:47,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:16:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-29 04:16:47,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 04:16:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:48,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:16:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:48,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:16:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:48,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 04:16:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:48,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:16:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:48,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:16:48,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:16:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:48,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:16:48,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 04:16:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:48,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:16:48,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 04:16:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:48,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:16:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:48,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:16:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:48,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:48,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:48,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:16:48,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:16:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 16 proven. 183 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-10-29 04:16:48,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085982317] [2020-10-29 04:16:48,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:48,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:16:48,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539135712] [2020-10-29 04:16:48,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:16:48,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:48,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:16:48,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:16:48,483 INFO L87 Difference]: Start difference. First operand 135 states and 147 transitions. Second operand 22 states. [2020-10-29 04:16:54,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:54,415 INFO L93 Difference]: Finished difference Result 443 states and 566 transitions. [2020-10-29 04:16:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-10-29 04:16:54,416 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 132 [2020-10-29 04:16:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:54,420 INFO L225 Difference]: With dead ends: 443 [2020-10-29 04:16:54,420 INFO L226 Difference]: Without dead ends: 440 [2020-10-29 04:16:54,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3345 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=906, Invalid=9600, Unknown=0, NotChecked=0, Total=10506 [2020-10-29 04:16:54,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-29 04:16:54,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 180. [2020-10-29 04:16:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-29 04:16:54,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 204 transitions. [2020-10-29 04:16:54,452 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 204 transitions. Word has length 132 [2020-10-29 04:16:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:54,452 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 204 transitions. [2020-10-29 04:16:54,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:16:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 204 transitions. [2020-10-29 04:16:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-29 04:16:54,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:54,453 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:54,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 04:16:54,454 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:54,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:54,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1577276409, now seen corresponding path program 4 times [2020-10-29 04:16:54,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:54,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644403072] [2020-10-29 04:16:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:54,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:54,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:56,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:56,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-29 04:16:59,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 04:16:59,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:17:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:17:00,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:17:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:17:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 04:17:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:17:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:17:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 04:17:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 04:17:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:17:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:17:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:00,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:00,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:00,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 16 proven. 183 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-10-29 04:17:00,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644403072] [2020-10-29 04:17:00,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:17:00,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:17:00,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206334030] [2020-10-29 04:17:00,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:17:00,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:17:00,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:17:00,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:17:00,164 INFO L87 Difference]: Start difference. First operand 180 states and 204 transitions. Second operand 23 states. [2020-10-29 04:17:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:17:05,560 INFO L93 Difference]: Finished difference Result 459 states and 587 transitions. [2020-10-29 04:17:05,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-10-29 04:17:05,562 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 132 [2020-10-29 04:17:05,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:17:05,566 INFO L225 Difference]: With dead ends: 459 [2020-10-29 04:17:05,566 INFO L226 Difference]: Without dead ends: 456 [2020-10-29 04:17:05,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2908 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=776, Invalid=8730, Unknown=0, NotChecked=0, Total=9506 [2020-10-29 04:17:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-29 04:17:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 143. [2020-10-29 04:17:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-29 04:17:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 155 transitions. [2020-10-29 04:17:05,597 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 155 transitions. Word has length 132 [2020-10-29 04:17:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:17:05,600 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 155 transitions. [2020-10-29 04:17:05,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:17:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 155 transitions. [2020-10-29 04:17:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 04:17:05,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:17:05,602 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:17:05,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 04:17:05,603 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:17:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:17:05,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1297625576, now seen corresponding path program 20 times [2020-10-29 04:17:05,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:17:05,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484953229] [2020-10-29 04:17:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:17:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:05,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-29 04:17:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 04:17:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:17:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:17:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:11,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:17:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 04:17:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:17:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:17:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 04:17:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 04:17:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:17:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:17:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 04:17:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:11,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:11,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:11,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:11,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:17:11,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:11,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 18 proven. 217 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-29 04:17:11,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484953229] [2020-10-29 04:17:11,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:17:11,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:17:11,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401205137] [2020-10-29 04:17:11,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:17:11,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:17:11,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:17:11,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:17:11,365 INFO L87 Difference]: Start difference. First operand 143 states and 155 transitions. Second operand 22 states. [2020-10-29 04:17:18,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:17:18,253 INFO L93 Difference]: Finished difference Result 467 states and 597 transitions. [2020-10-29 04:17:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2020-10-29 04:17:18,255 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 140 [2020-10-29 04:17:18,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:17:18,258 INFO L225 Difference]: With dead ends: 467 [2020-10-29 04:17:18,258 INFO L226 Difference]: Without dead ends: 464 [2020-10-29 04:17:18,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3630 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=938, Invalid=10618, Unknown=0, NotChecked=0, Total=11556 [2020-10-29 04:17:18,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-29 04:17:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 194. [2020-10-29 04:17:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-29 04:17:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 220 transitions. [2020-10-29 04:17:18,292 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 220 transitions. Word has length 140 [2020-10-29 04:17:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:17:18,293 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 220 transitions. [2020-10-29 04:17:18,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:17:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 220 transitions. [2020-10-29 04:17:18,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 04:17:18,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:17:18,294 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:17:18,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 04:17:18,295 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:17:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:17:18,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1430583770, now seen corresponding path program 4 times [2020-10-29 04:17:18,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:17:18,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52382757] [2020-10-29 04:17:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:17:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:18,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:18,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:22,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:23,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:23,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 04:17:23,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 04:17:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:17:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:17:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:24,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:24,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:17:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 04:17:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:17:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:17:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 04:17:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 04:17:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:17:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:17:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 04:17:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:24,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:24,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:24,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:24,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:24,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:24,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 18 proven. 217 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-29 04:17:24,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52382757] [2020-10-29 04:17:24,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:17:24,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:17:24,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544810924] [2020-10-29 04:17:24,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:17:24,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:17:24,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:17:24,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:17:24,164 INFO L87 Difference]: Start difference. First operand 194 states and 220 transitions. Second operand 23 states. [2020-10-29 04:17:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:17:32,277 INFO L93 Difference]: Finished difference Result 519 states and 672 transitions. [2020-10-29 04:17:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2020-10-29 04:17:32,278 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 140 [2020-10-29 04:17:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:17:32,283 INFO L225 Difference]: With dead ends: 519 [2020-10-29 04:17:32,284 INFO L226 Difference]: Without dead ends: 516 [2020-10-29 04:17:32,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4649 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1064, Invalid=13216, Unknown=0, NotChecked=0, Total=14280 [2020-10-29 04:17:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-10-29 04:17:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 151. [2020-10-29 04:17:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-29 04:17:32,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 163 transitions. [2020-10-29 04:17:32,314 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 163 transitions. Word has length 140 [2020-10-29 04:17:32,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:17:32,314 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 163 transitions. [2020-10-29 04:17:32,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:17:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 163 transitions. [2020-10-29 04:17:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-29 04:17:32,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:17:32,315 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:17:32,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 04:17:32,316 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:17:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:17:32,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1201508971, now seen corresponding path program 21 times [2020-10-29 04:17:32,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:17:32,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314749252] [2020-10-29 04:17:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:17:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:32,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:33,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:37,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:37,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 04:17:37,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:17:37,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:17:37,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:37,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:17:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 04:17:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 04:17:37,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:17:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:17:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:17:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:17:38,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:17:38,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:17:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 04:17:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:17:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:17:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 04:17:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 04:17:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:17:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:17:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 04:17:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:17:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:38,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:38,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:17:38,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:17:38,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:17:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 220 proven. 55 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-10-29 04:17:38,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314749252] [2020-10-29 04:17:38,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:17:38,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:17:38,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380714914] [2020-10-29 04:17:38,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:17:38,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:17:38,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:17:38,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:17:38,225 INFO L87 Difference]: Start difference. First operand 151 states and 163 transitions. Second operand 22 states. [2020-10-29 04:17:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:17:40,126 INFO L93 Difference]: Finished difference Result 253 states and 270 transitions. [2020-10-29 04:17:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 04:17:40,127 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 148 [2020-10-29 04:17:40,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:17:40,129 INFO L225 Difference]: With dead ends: 253 [2020-10-29 04:17:40,129 INFO L226 Difference]: Without dead ends: 160 [2020-10-29 04:17:40,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=384, Invalid=1508, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 04:17:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-29 04:17:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2020-10-29 04:17:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-29 04:17:40,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 170 transitions. [2020-10-29 04:17:40,148 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 170 transitions. Word has length 148 [2020-10-29 04:17:40,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:17:40,149 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 170 transitions. [2020-10-29 04:17:40,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:17:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 170 transitions. [2020-10-29 04:17:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-29 04:17:40,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:17:40,150 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:17:40,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 04:17:40,150 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:17:40,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:17:40,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1876512900, now seen corresponding path program 22 times [2020-10-29 04:17:40,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:17:40,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418102344] [2020-10-29 04:17:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:17:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:17:40,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:17:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking...