/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/Problem16_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:58:08,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:58:08,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:58:08,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:58:08,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:58:08,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:58:08,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:58:08,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:58:08,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:58:08,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:58:08,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:58:08,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:58:08,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:58:08,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:58:08,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:58:08,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:58:08,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:58:08,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:58:08,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:58:08,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:58:08,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:58:08,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:58:08,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:58:08,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:58:08,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:58:08,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:58:08,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:58:08,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:58:08,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:58:08,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:58:08,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:58:08,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:58:08,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:58:08,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:58:08,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:58:08,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:58:08,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:58:08,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:58:08,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:58:08,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:58:08,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:58:08,602 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 07:58:08,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:58:08,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:58:08,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:58:08,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:58:08,663 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:58:08,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:58:08,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:58:08,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:58:08,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:58:08,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:58:08,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:58:08,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:58:08,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:58:08,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:58:08,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:58:08,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:58:08,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:58:08,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:58:08,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:58:08,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:58:08,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:58:08,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:58:08,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:58:08,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:58:08,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:58:08,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:58:08,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:58:08,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:58:08,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:58:08,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:58:09,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:58:09,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:58:09,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:58:09,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:58:09,090 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:58:09,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label12.c [2020-10-29 07:58:09,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ff428e13/7938524a2ba6402b8c7811ff71fecaa0/FLAGdd2d52c28 [2020-10-29 07:58:10,119 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:58:10,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label12.c [2020-10-29 07:58:10,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ff428e13/7938524a2ba6402b8c7811ff71fecaa0/FLAGdd2d52c28 [2020-10-29 07:58:10,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ff428e13/7938524a2ba6402b8c7811ff71fecaa0 [2020-10-29 07:58:10,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:58:10,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:58:10,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:58:10,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:58:10,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:58:10,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:58:10" (1/1) ... [2020-10-29 07:58:10,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b7c9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:10, skipping insertion in model container [2020-10-29 07:58:10,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:58:10" (1/1) ... [2020-10-29 07:58:10,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:58:10,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:58:11,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:58:11,045 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:58:11,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:58:11,327 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:58:11,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11 WrapperNode [2020-10-29 07:58:11,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:58:11,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:58:11,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:58:11,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:58:11,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (1/1) ... [2020-10-29 07:58:11,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:58:11,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:58:11,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:58:11,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:58:11,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (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 07:58:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:58:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:58:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:58:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:58:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 07:58:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:58:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:58:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 07:58:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:58:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:58:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:58:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:58:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:58:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:58:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:58:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:58:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:58:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:58:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:58:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:58:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:58:14,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:58:14,260 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:58:14,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:58:14 BoogieIcfgContainer [2020-10-29 07:58:14,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:58:14,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:58:14,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:58:14,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:58:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:58:10" (1/3) ... [2020-10-29 07:58:14,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@851de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:58:14, skipping insertion in model container [2020-10-29 07:58:14,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:11" (2/3) ... [2020-10-29 07:58:14,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@851de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:58:14, skipping insertion in model container [2020-10-29 07:58:14,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:58:14" (3/3) ... [2020-10-29 07:58:14,273 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label12.c [2020-10-29 07:58:14,286 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:58:14,292 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:58:14,307 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:58:14,355 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:58:14,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:58:14,356 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:58:14,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:58:14,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:58:14,356 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:58:14,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:58:14,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:58:14,387 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 07:58:14,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 07:58:14,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:14,398 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] [2020-10-29 07:58:14,398 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash 791947724, now seen corresponding path program 1 times [2020-10-29 07:58:14,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:14,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695535373] [2020-10-29 07:58:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:14,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:15,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:15,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 07:58:15,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:15,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-29 07:58:15,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:15,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 07:58:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:58:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:15,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:15,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:58:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:15,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:15,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:15,436 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 07:58:15,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695535373] [2020-10-29 07:58:15,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:58:15,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:58:15,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647334915] [2020-10-29 07:58:15,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:58:15,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:15,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:58:15,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:58:15,469 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 07:58:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:58:19,875 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-29 07:58:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:58:19,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-29 07:58:19,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:58:19,902 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 07:58:19,902 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 07:58:19,912 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 07:58:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 07:58:20,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-29 07:58:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-29 07:58:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-29 07:58:20,031 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 46 [2020-10-29 07:58:20,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:58:20,032 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-29 07:58:20,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:58:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-29 07:58:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-29 07:58:20,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:20,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:20,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:58:20,040 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:20,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1272840468, now seen corresponding path program 1 times [2020-10-29 07:58:20,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:20,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276701969] [2020-10-29 07:58:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:20,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:20,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:21,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:58:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1295 [2020-10-29 07:58:21,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:21,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 07:58:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:21,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:21,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:21,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:21,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:21,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:58:21,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:21,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:21,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:21,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:21,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:58:21,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:58:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:21,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:21,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:58:21,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:21,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-29 07:58:21,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:21,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:21,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:58:21,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:58:21,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:58:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:58:21,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276701969] [2020-10-29 07:58:21,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:58:21,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:58:21,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013199239] [2020-10-29 07:58:21,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:58:21,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:21,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:58:21,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:58:21,898 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 7 states. [2020-10-29 07:58:26,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:58:26,739 INFO L93 Difference]: Finished difference Result 2092 states and 3103 transitions. [2020-10-29 07:58:26,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:58:26,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-29 07:58:26,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:58:26,753 INFO L225 Difference]: With dead ends: 2092 [2020-10-29 07:58:26,753 INFO L226 Difference]: Without dead ends: 1405 [2020-10-29 07:58:26,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:58:26,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2020-10-29 07:58:26,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1384. [2020-10-29 07:58:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-10-29 07:58:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1819 transitions. [2020-10-29 07:58:26,834 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1819 transitions. Word has length 122 [2020-10-29 07:58:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:58:26,835 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 1819 transitions. [2020-10-29 07:58:26,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:58:26,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1819 transitions. [2020-10-29 07:58:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-29 07:58:26,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:26,846 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:58:26,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:58:26,846 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:26,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:26,847 INFO L82 PathProgramCache]: Analyzing trace with hash -26612038, now seen corresponding path program 1 times [2020-10-29 07:58:26,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:26,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69080028] [2020-10-29 07:58:26,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:26,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:27,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:27,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:28,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:28,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:30,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:30,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-29 07:58:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:58:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3249 [2020-10-29 07:58:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:30,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:30,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:58:30,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 07:58:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:30,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:30,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:30,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:30,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:30,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:30,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:58:30,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:30,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:30,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:30,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:58:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:30,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:30,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:30,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:30,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:58:30,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:30,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 07:58:30,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:30,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:58:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:30,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:58:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:30,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:30,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:30,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:58:30,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:30,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 07:58:30,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:30,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:30,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:58:30,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:58:30,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 07:58:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:58:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:58:30,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69080028] [2020-10-29 07:58:30,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:58:30,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:58:30,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082427562] [2020-10-29 07:58:30,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:58:30,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:30,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:58:30,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:58:30,958 INFO L87 Difference]: Start difference. First operand 1384 states and 1819 transitions. Second operand 7 states. [2020-10-29 07:58:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:58:35,954 INFO L93 Difference]: Finished difference Result 3505 states and 4798 transitions. [2020-10-29 07:58:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:58:35,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-29 07:58:35,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:58:35,978 INFO L225 Difference]: With dead ends: 3505 [2020-10-29 07:58:35,978 INFO L226 Difference]: Without dead ends: 2127 [2020-10-29 07:58:35,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:58:35,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2020-10-29 07:58:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2091. [2020-10-29 07:58:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-10-29 07:58:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2698 transitions. [2020-10-29 07:58:36,095 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2698 transitions. Word has length 209 [2020-10-29 07:58:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:58:36,097 INFO L481 AbstractCegarLoop]: Abstraction has 2091 states and 2698 transitions. [2020-10-29 07:58:36,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:58:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2698 transitions. [2020-10-29 07:58:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-29 07:58:36,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:36,105 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:58:36,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:58:36,105 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:36,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1136097484, now seen corresponding path program 1 times [2020-10-29 07:58:36,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:36,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893693107] [2020-10-29 07:58:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:36,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:39,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:39,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-29 07:58:39,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:58:39,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2857 [2020-10-29 07:58:39,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:39,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 07:58:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-29 07:58:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:39,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:39,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:39,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:39,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:39,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:39,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:58:39,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:39,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 07:58:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:58:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:39,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:39,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:39,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:39,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:58:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:39,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 07:58:39,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:39,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:39,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:58:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:39,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:58:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:39,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:39,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:39,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:39,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 07:58:39,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-29 07:58:39,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:39,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 07:58:39,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 68 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 07:58:40,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893693107] [2020-10-29 07:58:40,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:58:40,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:58:40,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022625930] [2020-10-29 07:58:40,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:58:40,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:40,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:58:40,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:58:40,031 INFO L87 Difference]: Start difference. First operand 2091 states and 2698 transitions. Second operand 7 states. [2020-10-29 07:58:48,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:58:48,469 INFO L93 Difference]: Finished difference Result 5565 states and 7152 transitions. [2020-10-29 07:58:48,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:58:48,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-10-29 07:58:48,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:58:48,492 INFO L225 Difference]: With dead ends: 5565 [2020-10-29 07:58:48,492 INFO L226 Difference]: Without dead ends: 3480 [2020-10-29 07:58:48,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:58:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2020-10-29 07:58:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3123. [2020-10-29 07:58:48,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3123 states. [2020-10-29 07:58:48,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 3981 transitions. [2020-10-29 07:58:48,623 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 3981 transitions. Word has length 272 [2020-10-29 07:58:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:58:48,625 INFO L481 AbstractCegarLoop]: Abstraction has 3123 states and 3981 transitions. [2020-10-29 07:58:48,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:58:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 3981 transitions. [2020-10-29 07:58:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-10-29 07:58:48,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:48,639 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, 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, 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] [2020-10-29 07:58:48,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:58:48,640 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:48,641 INFO L82 PathProgramCache]: Analyzing trace with hash -150279636, now seen corresponding path program 1 times [2020-10-29 07:58:48,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:48,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700940562] [2020-10-29 07:58:48,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:48,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:48,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:51,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:51,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:53,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:53,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:53,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 492 [2020-10-29 07:58:53,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 07:58:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 07:58:53,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:53,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 07:58:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 07:58:53,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:53,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:53,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:53,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:53,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:53,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:53,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 07:58:53,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:53,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:58:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:58:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:53,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:58:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:54,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:54,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:58:54,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:54,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-29 07:58:54,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:54,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:58:54,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:54,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:58:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:54,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:54,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:54,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 07:58:54,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:54,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-29 07:58:54,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:54,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:58:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:58:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:58:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:54,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 07:58:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:54,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:58:54,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 07:58:54,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:54,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:58:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:58:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 07:58:54,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:54,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-29 07:58:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:54,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:54,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 07:58:54,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:58:54,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:54,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:58:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-29 07:58:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:58:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 336 proven. 280 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-29 07:58:55,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700940562] [2020-10-29 07:58:55,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:58:55,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:58:55,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281946273] [2020-10-29 07:58:55,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:58:55,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:55,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:58:55,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:58:55,202 INFO L87 Difference]: Start difference. First operand 3123 states and 3981 transitions. Second operand 9 states. [2020-10-29 07:59:01,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:01,442 INFO L93 Difference]: Finished difference Result 7341 states and 9565 transitions. [2020-10-29 07:59:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:59:01,446 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 474 [2020-10-29 07:59:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:01,469 INFO L225 Difference]: With dead ends: 7341 [2020-10-29 07:59:01,470 INFO L226 Difference]: Without dead ends: 3843 [2020-10-29 07:59:01,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-29 07:59:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-29 07:59:01,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3812. [2020-10-29 07:59:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3812 states. [2020-10-29 07:59:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 4142 transitions. [2020-10-29 07:59:01,632 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 4142 transitions. Word has length 474 [2020-10-29 07:59:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:01,633 INFO L481 AbstractCegarLoop]: Abstraction has 3812 states and 4142 transitions. [2020-10-29 07:59:01,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:59:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 4142 transitions. [2020-10-29 07:59:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2020-10-29 07:59:01,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:01,660 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 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] [2020-10-29 07:59:01,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:59:01,660 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:01,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:01,661 INFO L82 PathProgramCache]: Analyzing trace with hash -258186528, now seen corresponding path program 1 times [2020-10-29 07:59:01,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:01,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592582095] [2020-10-29 07:59:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:01,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:01,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:02,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:06,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:06,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 718 [2020-10-29 07:59:06,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:59:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 07:59:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:06,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-29 07:59:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:59:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:06,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:06,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:06,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:59:06,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:06,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:06,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:06,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:06,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:06,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 07:59:06,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:06,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:59:06,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:06,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 07:59:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:07,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 07:59:07,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:59:07,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:07,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 07:59:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:07,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:07,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:07,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 07:59:07,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:07,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:07,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 07:59:07,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:07,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 07:59:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:07,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:59:07,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:07,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 07:59:07,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:07,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 07:59:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:07,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 07:59:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:07,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:07,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 07:59:07,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 07:59:07,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:07,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 07:59:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:07,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:08,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 523 proven. 109 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-29 07:59:08,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592582095] [2020-10-29 07:59:08,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:08,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:08,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806664639] [2020-10-29 07:59:08,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:08,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:08,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:08,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:08,274 INFO L87 Difference]: Start difference. First operand 3812 states and 4142 transitions. Second operand 7 states. [2020-10-29 07:59:11,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:11,853 INFO L93 Difference]: Finished difference Result 9693 states and 10665 transitions. [2020-10-29 07:59:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:11,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 698 [2020-10-29 07:59:11,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:11,885 INFO L225 Difference]: With dead ends: 9693 [2020-10-29 07:59:11,885 INFO L226 Difference]: Without dead ends: 5538 [2020-10-29 07:59:11,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 07:59:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2020-10-29 07:59:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5518. [2020-10-29 07:59:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5518 states. [2020-10-29 07:59:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5518 states to 5518 states and 6059 transitions. [2020-10-29 07:59:12,041 INFO L78 Accepts]: Start accepts. Automaton has 5518 states and 6059 transitions. Word has length 698 [2020-10-29 07:59:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:12,042 INFO L481 AbstractCegarLoop]: Abstraction has 5518 states and 6059 transitions. [2020-10-29 07:59:12,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5518 states and 6059 transitions. [2020-10-29 07:59:12,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2020-10-29 07:59:12,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:12,061 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:12,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:59:12,062 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:12,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:12,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1963145970, now seen corresponding path program 1 times [2020-10-29 07:59:12,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:12,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821597295] [2020-10-29 07:59:12,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:12,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:12,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:12,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:13,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:17,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:17,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 921 [2020-10-29 07:59:17,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:17,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-10-29 07:59:17,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:17,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 447 [2020-10-29 07:59:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 07:59:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:17,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:17,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:17,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:17,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:17,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:59:17,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:17,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:17,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:17,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:17,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:17,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:17,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:17,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 07:59:17,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:59:17,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:17,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:17,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 07:59:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:17,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:17,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:17,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:59:17,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:59:17,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:17,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:17,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:17,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 07:59:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:17,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:17,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:17,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:17,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 07:59:17,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:17,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 07:59:17,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-29 07:59:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:17,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:18,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:18,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 07:59:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:18,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2020-10-29 07:59:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:18,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:18,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:18,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 07:59:18,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:18,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 636 proven. 148 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-29 07:59:19,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821597295] [2020-10-29 07:59:19,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:19,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:19,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732468655] [2020-10-29 07:59:19,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:19,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:19,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:19,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:19,482 INFO L87 Difference]: Start difference. First operand 5518 states and 6059 transitions. Second operand 7 states. [2020-10-29 07:59:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:24,144 INFO L93 Difference]: Finished difference Result 13091 states and 14437 transitions. [2020-10-29 07:59:24,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:59:24,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 901 [2020-10-29 07:59:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:24,183 INFO L225 Difference]: With dead ends: 13091 [2020-10-29 07:59:24,183 INFO L226 Difference]: Without dead ends: 7579 [2020-10-29 07:59:24,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:59:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2020-10-29 07:59:24,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 7224. [2020-10-29 07:59:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7224 states. [2020-10-29 07:59:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7224 states to 7224 states and 7855 transitions. [2020-10-29 07:59:24,388 INFO L78 Accepts]: Start accepts. Automaton has 7224 states and 7855 transitions. Word has length 901 [2020-10-29 07:59:24,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:24,390 INFO L481 AbstractCegarLoop]: Abstraction has 7224 states and 7855 transitions. [2020-10-29 07:59:24,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7224 states and 7855 transitions. [2020-10-29 07:59:24,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2020-10-29 07:59:24,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:24,413 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:24,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:59:24,413 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:24,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:24,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1591223152, now seen corresponding path program 1 times [2020-10-29 07:59:24,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:24,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596744767] [2020-10-29 07:59:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:24,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:25,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:25,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:28,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 930 [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-29 07:59:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 07:59:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:29,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:29,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:29,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:29,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:29,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:30,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 07:59:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:30,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:30,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:30,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 07:59:30,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 07:59:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:30,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-29 07:59:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:30,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:30,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:30,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 07:59:30,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 07:59:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:31,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-29 07:59:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:31,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 07:59:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 603 proven. 148 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2020-10-29 07:59:32,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596744767] [2020-10-29 07:59:32,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:32,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:32,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80141229] [2020-10-29 07:59:32,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:32,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:32,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:32,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:32,282 INFO L87 Difference]: Start difference. First operand 7224 states and 7855 transitions. Second operand 7 states. [2020-10-29 07:59:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:35,985 INFO L93 Difference]: Finished difference Result 16183 states and 17614 transitions. [2020-10-29 07:59:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:59:35,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 912 [2020-10-29 07:59:35,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:36,024 INFO L225 Difference]: With dead ends: 16183 [2020-10-29 07:59:36,024 INFO L226 Difference]: Without dead ends: 8626 [2020-10-29 07:59:36,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:59:36,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2020-10-29 07:59:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 8586. [2020-10-29 07:59:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8586 states. [2020-10-29 07:59:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8586 states to 8586 states and 9277 transitions. [2020-10-29 07:59:36,272 INFO L78 Accepts]: Start accepts. Automaton has 8586 states and 9277 transitions. Word has length 912 [2020-10-29 07:59:36,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:36,274 INFO L481 AbstractCegarLoop]: Abstraction has 8586 states and 9277 transitions. [2020-10-29 07:59:36,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 8586 states and 9277 transitions. [2020-10-29 07:59:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2020-10-29 07:59:36,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:36,300 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:59:36,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:59:36,301 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:36,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:36,302 INFO L82 PathProgramCache]: Analyzing trace with hash 860231408, now seen corresponding path program 1 times [2020-10-29 07:59:36,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:36,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213098226] [2020-10-29 07:59:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:36,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:36,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:37,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:39,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:39,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 980 [2020-10-29 07:59:41,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 07:59:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 07:59:41,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 732 [2020-10-29 07:59:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-29 07:59:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:41,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:41,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:41,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 07:59:41,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:41,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 07:59:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:41,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:41,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:41,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 07:59:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:41,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 07:59:41,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:59:41,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:41,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:42,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 07:59:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:42,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:42,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:59:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:59:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:42,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-29 07:59:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:42,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:42,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 07:59:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:42,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 07:59:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:42,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:42,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 07:59:42,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:42,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-29 07:59:42,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:42,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-29 07:59:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 896 proven. 2 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2020-10-29 07:59:43,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213098226] [2020-10-29 07:59:43,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:43,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:43,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50770312] [2020-10-29 07:59:43,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:43,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:43,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:43,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:43,275 INFO L87 Difference]: Start difference. First operand 8586 states and 9277 transitions. Second operand 7 states. [2020-10-29 07:59:46,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:46,919 INFO L93 Difference]: Finished difference Result 18574 states and 20262 transitions. [2020-10-29 07:59:46,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:46,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 958 [2020-10-29 07:59:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:46,951 INFO L225 Difference]: With dead ends: 18574 [2020-10-29 07:59:46,951 INFO L226 Difference]: Without dead ends: 8953 [2020-10-29 07:59:46,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:59:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8953 states. [2020-10-29 07:59:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8953 to 8921. [2020-10-29 07:59:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8921 states. [2020-10-29 07:59:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8921 states to 8921 states and 9474 transitions. [2020-10-29 07:59:47,158 INFO L78 Accepts]: Start accepts. Automaton has 8921 states and 9474 transitions. Word has length 958 [2020-10-29 07:59:47,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:47,160 INFO L481 AbstractCegarLoop]: Abstraction has 8921 states and 9474 transitions. [2020-10-29 07:59:47,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:47,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8921 states and 9474 transitions. [2020-10-29 07:59:47,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2020-10-29 07:59:47,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:47,263 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:47,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:59:47,263 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:47,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:47,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1919775368, now seen corresponding path program 1 times [2020-10-29 07:59:47,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:47,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133365132] [2020-10-29 07:59:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:47,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:48,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:48,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:48,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:50,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:52,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1148 [2020-10-29 07:59:52,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 07:59:52,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 07:59:52,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:52,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 07:59:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:52,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:59:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:52,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:52,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:52,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 07:59:52,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 07:59:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 07:59:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 07:59:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 07:59:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 07:59:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-29 07:59:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:59:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:59:53,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 07:59:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 07:59:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 07:59:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2020-10-29 07:59:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 07:59:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2743 backedges. 266 proven. 799 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2020-10-29 07:59:54,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133365132] [2020-10-29 07:59:54,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:54,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:54,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182596867] [2020-10-29 07:59:54,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:54,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:54,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:54,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:54,517 INFO L87 Difference]: Start difference. First operand 8921 states and 9474 transitions. Second operand 7 states. [2020-10-29 07:59:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:57,859 INFO L93 Difference]: Finished difference Result 18542 states and 19701 transitions. [2020-10-29 07:59:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:57,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1124 [2020-10-29 07:59:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:57,890 INFO L225 Difference]: With dead ends: 18542 [2020-10-29 07:59:57,890 INFO L226 Difference]: Without dead ends: 9627 [2020-10-29 07:59:57,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:59:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9627 states. [2020-10-29 07:59:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9627 to 9601. [2020-10-29 07:59:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9601 states. [2020-10-29 07:59:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9601 states to 9601 states and 10177 transitions. [2020-10-29 07:59:58,097 INFO L78 Accepts]: Start accepts. Automaton has 9601 states and 10177 transitions. Word has length 1124 [2020-10-29 07:59:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:58,097 INFO L481 AbstractCegarLoop]: Abstraction has 9601 states and 10177 transitions. [2020-10-29 07:59:58,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9601 states and 10177 transitions. [2020-10-29 07:59:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1372 [2020-10-29 07:59:58,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:58,145 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2020-10-29 07:59:58,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:59:58,146 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:58,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1252847978, now seen corresponding path program 1 times [2020-10-29 07:59:58,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:58,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643220616] [2020-10-29 07:59:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1397 [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:00:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:03,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:00:03,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:03,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:03,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:03,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:03,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:03,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:03,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:00:04,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-29 08:00:04,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:00:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:00:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:00:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:00:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:00:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:00:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:04,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:00:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:05,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:05,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:00:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:05,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:05,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:00:05,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:00:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:00:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:05,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:00:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:05,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-29 08:00:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:05,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:00:05,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3857 backedges. 569 proven. 813 refuted. 0 times theorem prover too weak. 2475 trivial. 0 not checked. [2020-10-29 08:00:06,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643220616] [2020-10-29 08:00:06,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:06,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:06,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394388025] [2020-10-29 08:00:06,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:06,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:06,911 INFO L87 Difference]: Start difference. First operand 9601 states and 10177 transitions. Second operand 8 states. [2020-10-29 08:00:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:11,784 INFO L93 Difference]: Finished difference Result 19888 states and 21146 transitions. [2020-10-29 08:00:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:00:11,785 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1371 [2020-10-29 08:00:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:11,830 INFO L225 Difference]: With dead ends: 19888 [2020-10-29 08:00:11,830 INFO L226 Difference]: Without dead ends: 10969 [2020-10-29 08:00:11,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 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 08:00:11,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10969 states. [2020-10-29 08:00:12,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10969 to 9609. [2020-10-29 08:00:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9609 states. [2020-10-29 08:00:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9609 states to 9609 states and 10136 transitions. [2020-10-29 08:00:12,033 INFO L78 Accepts]: Start accepts. Automaton has 9609 states and 10136 transitions. Word has length 1371 [2020-10-29 08:00:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:12,035 INFO L481 AbstractCegarLoop]: Abstraction has 9609 states and 10136 transitions. [2020-10-29 08:00:12,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:12,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9609 states and 10136 transitions. [2020-10-29 08:00:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2020-10-29 08:00:12,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:12,078 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:12,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:00:12,078 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:12,079 INFO L82 PathProgramCache]: Analyzing trace with hash 545985770, now seen corresponding path program 1 times [2020-10-29 08:00:12,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:12,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131161509] [2020-10-29 08:00:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:12,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:12,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:12,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:13,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:13,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:13,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1433 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:00:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:17,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:00:17,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:00:17,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:00:18,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 08:00:18,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:18,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:18,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:00:18,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:00:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:18,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:00:18,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:00:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:00:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:18,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:00:18,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:00:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:00:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:00:18,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:00:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:00:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:00:18,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:00:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:00:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:00:18,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 08:00:18,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:00:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1218 [2020-10-29 08:00:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:20,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4710 backedges. 529 proven. 886 refuted. 0 times theorem prover too weak. 3295 trivial. 0 not checked. [2020-10-29 08:00:20,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131161509] [2020-10-29 08:00:20,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:20,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:20,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656113897] [2020-10-29 08:00:20,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:20,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:20,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:20,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:20,150 INFO L87 Difference]: Start difference. First operand 9609 states and 10136 transitions. Second operand 7 states. [2020-10-29 08:00:23,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:23,975 INFO L93 Difference]: Finished difference Result 19565 states and 20663 transitions. [2020-10-29 08:00:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:00:23,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1405 [2020-10-29 08:00:23,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:24,007 INFO L225 Difference]: With dead ends: 19565 [2020-10-29 08:00:24,007 INFO L226 Difference]: Without dead ends: 10299 [2020-10-29 08:00:24,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:00:24,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2020-10-29 08:00:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 9946. [2020-10-29 08:00:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9946 states. [2020-10-29 08:00:24,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9946 states to 9946 states and 10466 transitions. [2020-10-29 08:00:24,203 INFO L78 Accepts]: Start accepts. Automaton has 9946 states and 10466 transitions. Word has length 1405 [2020-10-29 08:00:24,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:24,204 INFO L481 AbstractCegarLoop]: Abstraction has 9946 states and 10466 transitions. [2020-10-29 08:00:24,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:24,205 INFO L276 IsEmpty]: Start isEmpty. Operand 9946 states and 10466 transitions. [2020-10-29 08:00:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1467 [2020-10-29 08:00:24,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:24,244 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:00:24,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:00:24,245 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:24,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:24,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1871281416, now seen corresponding path program 1 times [2020-10-29 08:00:24,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:24,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205948892] [2020-10-29 08:00:24,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:24,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:29,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:29,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1494 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5165 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1078 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:00:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:29,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:29,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:29,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:29,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:29,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:30,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:00:30,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:00:30,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:00:30,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:00:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:30,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:00:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:00:30,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:00:30,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:00:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:30,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:00:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:00:30,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:00:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:00:30,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1279 [2020-10-29 08:00:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:31,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:31,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:31,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:31,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:00:31,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:31,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:31,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4824 backedges. 1403 proven. 148 refuted. 0 times theorem prover too weak. 3273 trivial. 0 not checked. [2020-10-29 08:00:32,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205948892] [2020-10-29 08:00:32,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:32,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:32,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049872687] [2020-10-29 08:00:32,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:32,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:32,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:32,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:32,551 INFO L87 Difference]: Start difference. First operand 9946 states and 10466 transitions. Second operand 7 states. [2020-10-29 08:00:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:36,388 INFO L93 Difference]: Finished difference Result 23294 states and 24637 transitions. [2020-10-29 08:00:36,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:00:36,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1466 [2020-10-29 08:00:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:36,431 INFO L225 Difference]: With dead ends: 23294 [2020-10-29 08:00:36,431 INFO L226 Difference]: Without dead ends: 13693 [2020-10-29 08:00:36,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 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 08:00:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2020-10-29 08:00:36,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 13346. [2020-10-29 08:00:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13346 states. [2020-10-29 08:00:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 14031 transitions. [2020-10-29 08:00:36,781 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 14031 transitions. Word has length 1466 [2020-10-29 08:00:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:36,783 INFO L481 AbstractCegarLoop]: Abstraction has 13346 states and 14031 transitions. [2020-10-29 08:00:36,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 14031 transitions. [2020-10-29 08:00:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2020-10-29 08:00:36,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:36,837 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:36,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:00:36,837 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:36,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1506410652, now seen corresponding path program 1 times [2020-10-29 08:00:36,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:36,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62455802] [2020-10-29 08:00:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:37,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:37,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:37,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1722 [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 917 [2020-10-29 08:00:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:00:42,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:42,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:42,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:42,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:42,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:42,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:42,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:00:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-29 08:00:43,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:43,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 909 [2020-10-29 08:00:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:43,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:00:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:43,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1182 [2020-10-29 08:00:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:43,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:00:43,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:00:43,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:43,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:00:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:43,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:43,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1294 [2020-10-29 08:00:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:43,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:43,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:00:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:00:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:43,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:00:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:43,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1509 [2020-10-29 08:00:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:43,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:43,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:43,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:00:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:43,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5077 backedges. 1253 proven. 469 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2020-10-29 08:00:45,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62455802] [2020-10-29 08:00:45,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:45,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:45,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653997434] [2020-10-29 08:00:45,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:45,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:45,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:45,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:45,998 INFO L87 Difference]: Start difference. First operand 13346 states and 14031 transitions. Second operand 8 states. [2020-10-29 08:00:51,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:51,151 INFO L93 Difference]: Finished difference Result 27035 states and 28455 transitions. [2020-10-29 08:00:51,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:00:51,152 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1696 [2020-10-29 08:00:51,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:51,183 INFO L225 Difference]: With dead ends: 27035 [2020-10-29 08:00:51,183 INFO L226 Difference]: Without dead ends: 14034 [2020-10-29 08:00:51,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:00:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14034 states. [2020-10-29 08:00:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14034 to 13687. [2020-10-29 08:00:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13687 states. [2020-10-29 08:00:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13687 states to 13687 states and 14369 transitions. [2020-10-29 08:00:51,426 INFO L78 Accepts]: Start accepts. Automaton has 13687 states and 14369 transitions. Word has length 1696 [2020-10-29 08:00:51,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:51,427 INFO L481 AbstractCegarLoop]: Abstraction has 13687 states and 14369 transitions. [2020-10-29 08:00:51,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:51,428 INFO L276 IsEmpty]: Start isEmpty. Operand 13687 states and 14369 transitions. [2020-10-29 08:00:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1738 [2020-10-29 08:00:51,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:51,472 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:51,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:00:51,473 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:51,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:51,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2131157526, now seen corresponding path program 1 times [2020-10-29 08:00:51,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:51,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984344280] [2020-10-29 08:00:51,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:52,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:53,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:56,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1767 [2020-10-29 08:00:56,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5116 [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:00:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:57,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:00:57,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:57,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:00:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:00:57,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:00:57,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:57,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:00:57,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:00:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:57,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:00:57,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:00:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:57,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:00:57,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:00:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:00:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:58,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-29 08:00:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:58,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:58,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:58,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-29 08:00:58,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 08:00:58,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:58,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-29 08:00:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:58,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:00:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:58,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:58,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:58,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 08:00:58,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:00:58,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:58,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:58,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1335 [2020-10-29 08:00:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:58,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:58,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:58,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:58,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1550 [2020-10-29 08:00:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:58,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:59,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:59,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:00:59,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:59,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5483 backedges. 1183 proven. 607 refuted. 0 times theorem prover too weak. 3693 trivial. 0 not checked. [2020-10-29 08:01:01,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984344280] [2020-10-29 08:01:01,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:01,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:01:01,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680593178] [2020-10-29 08:01:01,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:01:01,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:01,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:01:01,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:01:01,717 INFO L87 Difference]: Start difference. First operand 13687 states and 14369 transitions. Second operand 8 states. [2020-10-29 08:01:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:06,482 INFO L93 Difference]: Finished difference Result 29750 states and 31306 transitions. [2020-10-29 08:01:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:06,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1737 [2020-10-29 08:01:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:06,522 INFO L225 Difference]: With dead ends: 29750 [2020-10-29 08:01:06,522 INFO L226 Difference]: Without dead ends: 16408 [2020-10-29 08:01:06,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:01:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16408 states. [2020-10-29 08:01:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16408 to 16061. [2020-10-29 08:01:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16061 states. [2020-10-29 08:01:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16061 states to 16061 states and 16847 transitions. [2020-10-29 08:01:06,830 INFO L78 Accepts]: Start accepts. Automaton has 16061 states and 16847 transitions. Word has length 1737 [2020-10-29 08:01:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:06,832 INFO L481 AbstractCegarLoop]: Abstraction has 16061 states and 16847 transitions. [2020-10-29 08:01:06,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:01:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 16061 states and 16847 transitions. [2020-10-29 08:01:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2020-10-29 08:01:06,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:06,882 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:06,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:01:06,882 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash 252943206, now seen corresponding path program 1 times [2020-10-29 08:01:06,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:06,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195679127] [2020-10-29 08:01:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1881 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-29 08:01:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:01:12,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:12,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:12,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:01:12,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:12,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:12,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:01:12,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:01:12,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:12,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:01:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:12,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:01:12,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:01:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:13,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:01:13,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:01:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:01:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:01:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-29 08:01:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:14,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:01:14,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-29 08:01:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 08:01:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-29 08:01:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:01:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1447 [2020-10-29 08:01:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-29 08:01:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:14,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:17,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6362 backedges. 1123 proven. 829 refuted. 0 times theorem prover too weak. 4410 trivial. 0 not checked. [2020-10-29 08:01:17,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195679127] [2020-10-29 08:01:17,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:17,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:17,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886412726] [2020-10-29 08:01:17,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:17,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:17,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:17,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:17,904 INFO L87 Difference]: Start difference. First operand 16061 states and 16847 transitions. Second operand 7 states. [2020-10-29 08:01:22,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:22,032 INFO L93 Difference]: Finished difference Result 33135 states and 34810 transitions. [2020-10-29 08:01:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:22,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1849 [2020-10-29 08:01:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:22,071 INFO L225 Difference]: With dead ends: 33135 [2020-10-29 08:01:22,071 INFO L226 Difference]: Without dead ends: 17419 [2020-10-29 08:01:22,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:22,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17419 states. [2020-10-29 08:01:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17419 to 16735. [2020-10-29 08:01:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16735 states. [2020-10-29 08:01:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16735 states to 16735 states and 17519 transitions. [2020-10-29 08:01:22,381 INFO L78 Accepts]: Start accepts. Automaton has 16735 states and 17519 transitions. Word has length 1849 [2020-10-29 08:01:22,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:22,382 INFO L481 AbstractCegarLoop]: Abstraction has 16735 states and 17519 transitions. [2020-10-29 08:01:22,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:22,382 INFO L276 IsEmpty]: Start isEmpty. Operand 16735 states and 17519 transitions. [2020-10-29 08:01:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1887 [2020-10-29 08:01:22,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:22,427 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-29 08:01:22,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:01:22,428 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:22,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:22,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1530607344, now seen corresponding path program 1 times [2020-10-29 08:01:22,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:22,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218487155] [2020-10-29 08:01:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:22,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:23,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:24,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1916 [2020-10-29 08:01:27,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-29 08:01:27,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 679 [2020-10-29 08:01:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:01:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:28,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:28,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:28,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:01:28,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:01:28,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:01:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:28,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:01:28,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:01:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:28,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:01:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:01:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:01:28,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-29 08:01:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:29,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:29,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:01:29,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:29,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1183 [2020-10-29 08:01:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:29,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-29 08:01:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 08:01:29,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:29,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-29 08:01:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:29,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:01:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:29,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 08:01:29,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:29,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:29,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1484 [2020-10-29 08:01:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:29,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1699 [2020-10-29 08:01:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:29,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:29,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:29,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:01:29,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:29,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:29,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6153 backedges. 1072 proven. 866 refuted. 0 times theorem prover too weak. 4215 trivial. 0 not checked. [2020-10-29 08:01:32,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218487155] [2020-10-29 08:01:32,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:32,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:32,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409317241] [2020-10-29 08:01:32,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:32,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:32,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:32,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:32,322 INFO L87 Difference]: Start difference. First operand 16735 states and 17519 transitions. Second operand 7 states. [2020-10-29 08:01:36,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:36,339 INFO L93 Difference]: Finished difference Result 33817 states and 35470 transitions. [2020-10-29 08:01:36,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:36,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1886 [2020-10-29 08:01:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:36,384 INFO L225 Difference]: With dead ends: 33817 [2020-10-29 08:01:36,384 INFO L226 Difference]: Without dead ends: 17427 [2020-10-29 08:01:36,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17427 states.