/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/eca-rers2012/Problem18_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:38:32,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:38:32,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:38:32,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:38:32,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:38:32,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:38:32,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:38:32,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:38:32,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:38:32,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:38:32,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:38:32,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:38:32,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:38:32,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:38:32,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:38:32,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:38:32,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:38:32,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:38:32,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:38:32,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:38:32,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:38:32,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:38:32,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:38:32,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:38:32,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:38:32,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:38:32,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:38:32,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:38:32,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:38:32,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:38:32,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:38:32,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:38:32,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:38:32,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:38:32,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:38:32,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:38:32,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:38:32,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:38:32,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:38:32,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:38:32,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:38:32,529 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 08:38:32,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:38:32,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:38:32,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:38:32,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:38:32,589 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:38:32,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:38:32,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:38:32,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:38:32,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:38:32,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:38:32,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:38:32,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:38:32,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:38:32,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:38:32,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:38:32,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:38:32,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:38:32,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:38:32,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:38:32,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:38:32,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:38:32,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:38:32,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:38:32,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:38:32,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:38:32,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:38:32,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:38:32,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:38:32,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:38:32,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:38:33,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:38:33,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:38:33,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:38:33,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:38:33,048 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:38:33,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label47.c [2020-10-29 08:38:33,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/762c424f5/f518f29496a7479cbbf463f4362180e7/FLAGb70ff67c4 [2020-10-29 08:38:34,181 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:38:34,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label47.c [2020-10-29 08:38:34,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/762c424f5/f518f29496a7479cbbf463f4362180e7/FLAGb70ff67c4 [2020-10-29 08:38:34,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/762c424f5/f518f29496a7479cbbf463f4362180e7 [2020-10-29 08:38:34,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:38:34,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:38:34,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:38:34,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:38:34,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:38:34,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:38:34" (1/1) ... [2020-10-29 08:38:34,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be277ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:34, skipping insertion in model container [2020-10-29 08:38:34,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:38:34" (1/1) ... [2020-10-29 08:38:34,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:38:34,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:38:35,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:38:35,563 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:38:36,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:38:36,236 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:38:36,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36 WrapperNode [2020-10-29 08:38:36,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:38:36,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:38:36,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:38:36,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:38:36,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (1/1) ... [2020-10-29 08:38:36,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:38:36,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:38:36,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:38:36,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:38:36,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (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 08:38:36,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:38:36,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:38:36,640 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:38:36,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:38:36,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:38:36,641 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:38:36,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:38:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:38:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:38:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:38:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:38:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:38:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:38:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:38:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:38:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:38:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:38:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:38:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:38:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:38:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:38:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:38:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:38:41,039 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:38:41,039 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:38:41,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:38:41 BoogieIcfgContainer [2020-10-29 08:38:41,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:38:41,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:38:41,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:38:41,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:38:41,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:38:34" (1/3) ... [2020-10-29 08:38:41,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:38:41, skipping insertion in model container [2020-10-29 08:38:41,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:36" (2/3) ... [2020-10-29 08:38:41,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:38:41, skipping insertion in model container [2020-10-29 08:38:41,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:38:41" (3/3) ... [2020-10-29 08:38:41,061 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label47.c [2020-10-29 08:38:41,074 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:38:41,081 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:38:41,096 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:38:41,148 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:38:41,148 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:38:41,148 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:38:41,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:38:41,149 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:38:41,149 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:38:41,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:38:41,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:38:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:38:41,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 08:38:41,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:41,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:38:41,197 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:41,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:41,204 INFO L82 PathProgramCache]: Analyzing trace with hash -954687600, now seen corresponding path program 1 times [2020-10-29 08:38:41,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:41,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844803423] [2020-10-29 08:38:41,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:41,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:42,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:42,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 08:38:42,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-10-29 08:38:42,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:42,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:38:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:38:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 08:38:42,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:38:42,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:42,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:42,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:42,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:42,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:38:42,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:42,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:38:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:42,323 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 08:38:42,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844803423] [2020-10-29 08:38:42,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:38:42,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:38:42,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561954659] [2020-10-29 08:38:42,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:38:42,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:42,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:38:42,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:38:42,352 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-29 08:38:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:52,293 INFO L93 Difference]: Finished difference Result 2291 states and 4370 transitions. [2020-10-29 08:38:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:38:52,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-29 08:38:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:52,326 INFO L225 Difference]: With dead ends: 2291 [2020-10-29 08:38:52,326 INFO L226 Difference]: Without dead ends: 1433 [2020-10-29 08:38:52,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:38:52,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-29 08:38:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1429. [2020-10-29 08:38:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2020-10-29 08:38:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2263 transitions. [2020-10-29 08:38:52,527 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2263 transitions. Word has length 66 [2020-10-29 08:38:52,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:52,529 INFO L481 AbstractCegarLoop]: Abstraction has 1429 states and 2263 transitions. [2020-10-29 08:38:52,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:38:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2263 transitions. [2020-10-29 08:38:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-29 08:38:52,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:52,540 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:38:52,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:38:52,541 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:52,543 INFO L82 PathProgramCache]: Analyzing trace with hash 48016782, now seen corresponding path program 1 times [2020-10-29 08:38:52,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:52,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476788901] [2020-10-29 08:38:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:53,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:53,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:53,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 08:38:53,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:38:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-10-29 08:38:53,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:53,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 08:38:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:38:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:38:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:53,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:53,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:53,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:38:53,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:53,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:53,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:54,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:54,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:54,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:38:54,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:38:54,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:54,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:38:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 57 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:38:54,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476788901] [2020-10-29 08:38:54,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:38:54,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:38:54,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275506669] [2020-10-29 08:38:54,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:38:54,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:54,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:38:54,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:38:54,154 INFO L87 Difference]: Start difference. First operand 1429 states and 2263 transitions. Second operand 5 states. [2020-10-29 08:39:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:03,307 INFO L93 Difference]: Finished difference Result 4276 states and 6821 transitions. [2020-10-29 08:39:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:39:03,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-10-29 08:39:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:03,335 INFO L225 Difference]: With dead ends: 4276 [2020-10-29 08:39:03,335 INFO L226 Difference]: Without dead ends: 2853 [2020-10-29 08:39:03,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:39:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2020-10-29 08:39:03,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2849. [2020-10-29 08:39:03,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2020-10-29 08:39:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3938 transitions. [2020-10-29 08:39:03,459 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3938 transitions. Word has length 135 [2020-10-29 08:39:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:03,464 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 3938 transitions. [2020-10-29 08:39:03,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:39:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3938 transitions. [2020-10-29 08:39:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-29 08:39:03,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:03,481 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:03,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:39:03,482 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:03,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:03,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1794670172, now seen corresponding path program 1 times [2020-10-29 08:39:03,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:03,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054733979] [2020-10-29 08:39:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:03,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:04,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:04,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-29 08:39:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:39:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-10-29 08:39:04,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:04,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:39:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:04,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:04,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:04,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:04,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:04,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:04,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:39:04,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:04,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:04,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:04,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:05,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:05,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:05,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 08:39:05,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:05,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-29 08:39:05,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:05,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 08:39:05,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:39:05,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054733979] [2020-10-29 08:39:05,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:39:05,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:39:05,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63656217] [2020-10-29 08:39:05,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:39:05,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:05,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:39:05,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:39:05,438 INFO L87 Difference]: Start difference. First operand 2849 states and 3938 transitions. Second operand 8 states. [2020-10-29 08:39:21,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:21,619 INFO L93 Difference]: Finished difference Result 11493 states and 16205 transitions. [2020-10-29 08:39:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:39:21,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 198 [2020-10-29 08:39:21,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:21,673 INFO L225 Difference]: With dead ends: 11493 [2020-10-29 08:39:21,673 INFO L226 Difference]: Without dead ends: 8650 [2020-10-29 08:39:21,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:39:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8650 states. [2020-10-29 08:39:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8650 to 8625. [2020-10-29 08:39:21,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8625 states. [2020-10-29 08:39:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8625 states to 8625 states and 10939 transitions. [2020-10-29 08:39:22,007 INFO L78 Accepts]: Start accepts. Automaton has 8625 states and 10939 transitions. Word has length 198 [2020-10-29 08:39:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:22,011 INFO L481 AbstractCegarLoop]: Abstraction has 8625 states and 10939 transitions. [2020-10-29 08:39:22,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:39:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8625 states and 10939 transitions. [2020-10-29 08:39:22,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-29 08:39:22,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:22,023 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:22,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:39:22,023 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:22,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash -177958682, now seen corresponding path program 1 times [2020-10-29 08:39:22,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:22,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133518694] [2020-10-29 08:39:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:27,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:27,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-29 08:39:27,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:39:27,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 08:39:27,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:27,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:39:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:27,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:27,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:27,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:27,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:27,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:39:27,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:27,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:27,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:27,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:27,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:27,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-29 08:39:27,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:27,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:27,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 08:39:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:27,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:39:27,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:27,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:39:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:27,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:39:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 116 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:39:28,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133518694] [2020-10-29 08:39:28,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:28,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:28,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698204842] [2020-10-29 08:39:28,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:28,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:28,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:28,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:28,017 INFO L87 Difference]: Start difference. First operand 8625 states and 10939 transitions. Second operand 7 states. [2020-10-29 08:39:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:41,101 INFO L93 Difference]: Finished difference Result 20932 states and 26330 transitions. [2020-10-29 08:39:41,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:39:41,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-10-29 08:39:41,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:41,177 INFO L225 Difference]: With dead ends: 20932 [2020-10-29 08:39:41,177 INFO L226 Difference]: Without dead ends: 12313 [2020-10-29 08:39:41,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:39:41,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12313 states. [2020-10-29 08:39:41,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12313 to 11578. [2020-10-29 08:39:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11578 states. [2020-10-29 08:39:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 14429 transitions. [2020-10-29 08:39:41,557 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 14429 transitions. Word has length 261 [2020-10-29 08:39:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:41,558 INFO L481 AbstractCegarLoop]: Abstraction has 11578 states and 14429 transitions. [2020-10-29 08:39:41,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 14429 transitions. [2020-10-29 08:39:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-10-29 08:39:41,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:41,570 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:41,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:39:41,570 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:41,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1643574086, now seen corresponding path program 1 times [2020-10-29 08:39:41,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:41,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101832155] [2020-10-29 08:39:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:44,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:46,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:46,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 463 [2020-10-29 08:39:46,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:39:46,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 08:39:46,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:46,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:39:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 08:39:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:46,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:46,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:46,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:46,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:39:46,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:46,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:46,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:47,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:47,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:39:47,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 08:39:47,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:47,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:39:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:47,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-29 08:39:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:47,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:47,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:47,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:47,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:47,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 08:39:47,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:47,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:47,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:47,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:47,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:47,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:47,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-29 08:39:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:47,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:47,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:47,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:39:47,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:39:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:47,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:39:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 297 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-29 08:39:47,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101832155] [2020-10-29 08:39:47,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:47,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:39:47,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371830535] [2020-10-29 08:39:47,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:39:47,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:47,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:39:47,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:39:47,905 INFO L87 Difference]: Start difference. First operand 11578 states and 14429 transitions. Second operand 8 states. [2020-10-29 08:40:07,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:07,941 INFO L93 Difference]: Finished difference Result 34189 states and 44224 transitions. [2020-10-29 08:40:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 08:40:07,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 447 [2020-10-29 08:40:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:08,031 INFO L225 Difference]: With dead ends: 34189 [2020-10-29 08:40:08,031 INFO L226 Difference]: Without dead ends: 21012 [2020-10-29 08:40:08,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-29 08:40:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21012 states. [2020-10-29 08:40:08,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21012 to 18109. [2020-10-29 08:40:08,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18109 states. [2020-10-29 08:40:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18109 states to 18109 states and 20301 transitions. [2020-10-29 08:40:08,538 INFO L78 Accepts]: Start accepts. Automaton has 18109 states and 20301 transitions. Word has length 447 [2020-10-29 08:40:08,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:08,539 INFO L481 AbstractCegarLoop]: Abstraction has 18109 states and 20301 transitions. [2020-10-29 08:40:08,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:40:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 18109 states and 20301 transitions. [2020-10-29 08:40:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-10-29 08:40:08,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:08,550 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:08,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:40:08,551 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:08,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:08,551 INFO L82 PathProgramCache]: Analyzing trace with hash -103076736, now seen corresponding path program 1 times [2020-10-29 08:40:08,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:08,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371329839] [2020-10-29 08:40:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:08,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:08,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:09,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:13,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:13,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 479 [2020-10-29 08:40:13,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 08:40:13,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:13,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:40:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:40:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-29 08:40:13,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:13,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:13,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:13,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:13,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:40:13,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:13,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:40:13,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:14,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:40:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:14,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:14,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:40:14,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:40:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:40:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:15,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-29 08:40:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:15,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:15,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:15,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:40:15,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 08:40:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:15,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 08:40:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 116 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:40:15,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371329839] [2020-10-29 08:40:15,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:15,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:40:15,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964192585] [2020-10-29 08:40:15,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:40:15,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:15,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:40:15,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:40:15,353 INFO L87 Difference]: Start difference. First operand 18109 states and 20301 transitions. Second operand 8 states. [2020-10-29 08:40:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:26,897 INFO L93 Difference]: Finished difference Result 40907 states and 47115 transitions. [2020-10-29 08:40:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:40:26,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 463 [2020-10-29 08:40:26,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:26,977 INFO L225 Difference]: With dead ends: 40907 [2020-10-29 08:40:26,977 INFO L226 Difference]: Without dead ends: 22804 [2020-10-29 08:40:27,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:40:27,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22804 states. [2020-10-29 08:40:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22804 to 22609. [2020-10-29 08:40:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22609 states. [2020-10-29 08:40:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22609 states to 22609 states and 25472 transitions. [2020-10-29 08:40:27,520 INFO L78 Accepts]: Start accepts. Automaton has 22609 states and 25472 transitions. Word has length 463 [2020-10-29 08:40:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:27,520 INFO L481 AbstractCegarLoop]: Abstraction has 22609 states and 25472 transitions. [2020-10-29 08:40:27,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:40:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 22609 states and 25472 transitions. [2020-10-29 08:40:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2020-10-29 08:40:27,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:27,560 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:27,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:40:27,561 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:27,562 INFO L82 PathProgramCache]: Analyzing trace with hash -275682206, now seen corresponding path program 1 times [2020-10-29 08:40:27,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:27,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097447109] [2020-10-29 08:40:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:27,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:28,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:32,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:32,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1012 [2020-10-29 08:40:32,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:40:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 08:40:32,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:32,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:32,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:32,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:40:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:40:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:33,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:33,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:33,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:33,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:33,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:33,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:40:33,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:33,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:33,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:33,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:33,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:33,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:40:33,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:33,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:33,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:33,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:33,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:33,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:33,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:33,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:33,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:33,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:40:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:33,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:33,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:33,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:34,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:34,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:34,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 08:40:34,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:34,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:40:34,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:34,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:34,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:34,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:34,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:34,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:34,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:40:34,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:34,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:34,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:40:34,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:34,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:34,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:34,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:34,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:40:34,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-29 08:40:34,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:34,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:40:34,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 356 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-29 08:40:35,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097447109] [2020-10-29 08:40:35,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:35,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:35,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351407527] [2020-10-29 08:40:35,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:35,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:35,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:35,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:35,094 INFO L87 Difference]: Start difference. First operand 22609 states and 25472 transitions. Second operand 7 states. [2020-10-29 08:40:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:44,956 INFO L93 Difference]: Finished difference Result 51903 states and 60137 transitions. [2020-10-29 08:40:44,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:40:44,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 990 [2020-10-29 08:40:44,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:45,040 INFO L225 Difference]: With dead ends: 51903 [2020-10-29 08:40:45,041 INFO L226 Difference]: Without dead ends: 29300 [2020-10-29 08:40:45,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:40:45,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29300 states. [2020-10-29 08:40:45,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29300 to 29173. [2020-10-29 08:40:45,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29173 states. [2020-10-29 08:40:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29173 states to 29173 states and 33426 transitions. [2020-10-29 08:40:45,892 INFO L78 Accepts]: Start accepts. Automaton has 29173 states and 33426 transitions. Word has length 990 [2020-10-29 08:40:45,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:45,894 INFO L481 AbstractCegarLoop]: Abstraction has 29173 states and 33426 transitions. [2020-10-29 08:40:45,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 29173 states and 33426 transitions. [2020-10-29 08:40:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2020-10-29 08:40:45,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:45,939 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:45,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:40:45,939 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:45,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:45,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1939354332, now seen corresponding path program 1 times [2020-10-29 08:40:45,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:45,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729338565] [2020-10-29 08:40:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:46,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:51,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:51,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1019 [2020-10-29 08:40:51,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 08:40:51,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:51,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:40:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 08:40:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:51,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:51,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:51,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:51,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:51,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:51,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:51,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:51,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:51,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:51,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:51,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:51,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:51,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:40:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:51,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:51,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:51,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:51,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:51,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:51,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:51,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:51,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:51,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:52,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:52,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:52,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:40:52,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:52,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:40:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:52,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:52,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:52,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:52,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:40:52,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:52,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:52,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:52,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:52,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:40:52,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:52,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:52,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:52,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:40:52,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:40:52,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:52,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:40:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:52,993 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 370 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-29 08:40:52,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729338565] [2020-10-29 08:40:52,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:52,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:52,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525168301] [2020-10-29 08:40:52,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:52,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:52,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:52,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:52,995 INFO L87 Difference]: Start difference. First operand 29173 states and 33426 transitions. Second operand 7 states. [2020-10-29 08:41:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:07,438 INFO L93 Difference]: Finished difference Result 64900 states and 74582 transitions. [2020-10-29 08:41:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:41:07,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 997 [2020-10-29 08:41:07,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:07,539 INFO L225 Difference]: With dead ends: 64900 [2020-10-29 08:41:07,539 INFO L226 Difference]: Without dead ends: 35733 [2020-10-29 08:41:07,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:41:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35733 states. [2020-10-29 08:41:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35733 to 34869. [2020-10-29 08:41:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34869 states. [2020-10-29 08:41:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34869 states to 34869 states and 39669 transitions. [2020-10-29 08:41:08,432 INFO L78 Accepts]: Start accepts. Automaton has 34869 states and 39669 transitions. Word has length 997 [2020-10-29 08:41:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:08,434 INFO L481 AbstractCegarLoop]: Abstraction has 34869 states and 39669 transitions. [2020-10-29 08:41:08,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:41:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 34869 states and 39669 transitions. [2020-10-29 08:41:08,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2020-10-29 08:41:08,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:08,451 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:08,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:41:08,452 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:08,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:08,453 INFO L82 PathProgramCache]: Analyzing trace with hash -59224930, now seen corresponding path program 1 times [2020-10-29 08:41:08,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:08,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873488938] [2020-10-29 08:41:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:08,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:09,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:09,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:13,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1090 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:41:13,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:14,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:14,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:14,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:14,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:14,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:14,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:14,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:14,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:41:14,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:14,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:14,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:14,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:14,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:14,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:14,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:14,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:41:14,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:14,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:14,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:14,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:14,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:14,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:14,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:14,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:14,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:14,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:14,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:14,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:14,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:41:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:14,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:15,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:15,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:15,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:41:15,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:15,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:15,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:15,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:41:15,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:15,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:41:15,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:15,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:41:15,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-29 08:41:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:15,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:15,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:41:15,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:41:15,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:15,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 08:41:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:15,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 394 proven. 75 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-10-29 08:41:15,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873488938] [2020-10-29 08:41:15,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:15,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:41:15,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935361524] [2020-10-29 08:41:15,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:41:15,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:15,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:41:15,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:41:15,847 INFO L87 Difference]: Start difference. First operand 34869 states and 39669 transitions. Second operand 8 states. [2020-10-29 08:41:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:27,066 INFO L93 Difference]: Finished difference Result 87643 states and 101741 transitions. [2020-10-29 08:41:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:41:27,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1066 [2020-10-29 08:41:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:27,228 INFO L225 Difference]: With dead ends: 87643 [2020-10-29 08:41:27,228 INFO L226 Difference]: Without dead ends: 52780 [2020-10-29 08:41:27,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:41:27,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52780 states. [2020-10-29 08:41:28,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52780 to 52723. [2020-10-29 08:41:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52723 states. [2020-10-29 08:41:28,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52723 states to 52723 states and 61127 transitions. [2020-10-29 08:41:28,265 INFO L78 Accepts]: Start accepts. Automaton has 52723 states and 61127 transitions. Word has length 1066 [2020-10-29 08:41:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:28,266 INFO L481 AbstractCegarLoop]: Abstraction has 52723 states and 61127 transitions. [2020-10-29 08:41:28,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:41:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 52723 states and 61127 transitions. [2020-10-29 08:41:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1134 [2020-10-29 08:41:28,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:28,283 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:28,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:41:28,284 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:28,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:28,285 INFO L82 PathProgramCache]: Analyzing trace with hash 711824872, now seen corresponding path program 1 times [2020-10-29 08:41:28,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:28,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439495481] [2020-10-29 08:41:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:28,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:28,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1157 [2020-10-29 08:41:33,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:41:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4593 [2020-10-29 08:41:33,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:41:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:41:33,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:33,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:33,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:33,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:33,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:33,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:33,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:33,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:33,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:41:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:33,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:33,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:33,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:33,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:33,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:33,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:33,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:34,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:41:34,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:41:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:34,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:34,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:41:34,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:41:34,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:34,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:34,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:34,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:41:34,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 503 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-29 08:41:34,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439495481] [2020-10-29 08:41:34,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:34,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:41:34,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974924487] [2020-10-29 08:41:34,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:41:34,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:34,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:41:34,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:41:34,918 INFO L87 Difference]: Start difference. First operand 52723 states and 61127 transitions. Second operand 7 states. [2020-10-29 08:41:48,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:48,126 INFO L93 Difference]: Finished difference Result 117564 states and 138048 transitions. [2020-10-29 08:41:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:41:48,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1133 [2020-10-29 08:41:48,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:48,312 INFO L225 Difference]: With dead ends: 117564 [2020-10-29 08:41:48,312 INFO L226 Difference]: Without dead ends: 64847 [2020-10-29 08:41:48,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:41:48,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64847 states. [2020-10-29 08:41:49,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64847 to 64090. [2020-10-29 08:41:49,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64090 states. [2020-10-29 08:41:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64090 states to 64090 states and 73922 transitions. [2020-10-29 08:41:49,558 INFO L78 Accepts]: Start accepts. Automaton has 64090 states and 73922 transitions. Word has length 1133 [2020-10-29 08:41:49,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:49,559 INFO L481 AbstractCegarLoop]: Abstraction has 64090 states and 73922 transitions. [2020-10-29 08:41:49,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:41:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 64090 states and 73922 transitions. [2020-10-29 08:41:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1155 [2020-10-29 08:41:49,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:49,580 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:49,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:41:49,581 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1205635074, now seen corresponding path program 1 times [2020-10-29 08:41:49,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:49,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26906637] [2020-10-29 08:41:49,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:50,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:51,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:51,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1178 [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1289 [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-29 08:41:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:41:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:51,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:51,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:51,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:51,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:51,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:51,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:51,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:51,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:51,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:51,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:51,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:51,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:51,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:51,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:51,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:51,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:52,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:52,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:52,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:41:52,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:52,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:52,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:41:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:52,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:41:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 237 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-29 08:41:53,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26906637] [2020-10-29 08:41:53,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:53,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:41:53,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116271547] [2020-10-29 08:41:53,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:41:53,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:53,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:41:53,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:41:53,299 INFO L87 Difference]: Start difference. First operand 64090 states and 73922 transitions. Second operand 5 states. [2020-10-29 08:42:03,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:42:03,301 INFO L93 Difference]: Finished difference Result 133824 states and 153950 transitions. [2020-10-29 08:42:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:42:03,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1154 [2020-10-29 08:42:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:42:03,485 INFO L225 Difference]: With dead ends: 133824 [2020-10-29 08:42:03,485 INFO L226 Difference]: Without dead ends: 69740 [2020-10-29 08:42:03,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:42:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69740 states. [2020-10-29 08:42:05,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69740 to 69727. [2020-10-29 08:42:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69727 states. [2020-10-29 08:42:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69727 states to 69727 states and 79760 transitions. [2020-10-29 08:42:05,512 INFO L78 Accepts]: Start accepts. Automaton has 69727 states and 79760 transitions. Word has length 1154 [2020-10-29 08:42:05,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:42:05,516 INFO L481 AbstractCegarLoop]: Abstraction has 69727 states and 79760 transitions. [2020-10-29 08:42:05,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:42:05,516 INFO L276 IsEmpty]: Start isEmpty. Operand 69727 states and 79760 transitions. [2020-10-29 08:42:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2020-10-29 08:42:05,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:42:05,576 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:05,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:42:05,576 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:42:05,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:42:05,577 INFO L82 PathProgramCache]: Analyzing trace with hash -797820228, now seen corresponding path program 1 times [2020-10-29 08:42:05,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:42:05,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019848130] [2020-10-29 08:42:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:42:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:06,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:06,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking...