/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/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:34:17,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:34:17,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:34:17,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:34:17,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:34:17,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:34:17,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:34:17,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:34:17,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:34:17,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:34:17,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:34:17,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:34:17,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:34:17,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:34:17,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:34:17,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:34:17,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:34:17,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:34:17,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:34:17,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:34:17,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:34:17,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:34:17,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:34:17,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:34:17,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:34:17,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:34:17,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:34:17,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:34:17,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:34:17,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:34:17,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:34:17,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:34:17,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:34:17,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:34:17,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:34:17,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:34:17,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:34:17,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:34:17,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:34:17,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:34:17,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:34:17,837 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 07:34:17,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:34:17,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:34:17,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:34:17,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:34:17,894 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:34:17,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:34:17,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:34:17,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:34:17,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:34:17,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:34:17,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:34:17,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:34:17,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:34:17,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:34:17,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:34:17,897 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:34:17,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:34:17,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:34:17,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:34:17,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:34:17,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:34:17,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:34:17,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:34:17,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:34:17,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:34:17,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:34:17,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:34:17,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:34:17,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:34:17,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:34:18,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:34:18,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:34:18,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:34:18,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:34:18,372 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:34:18,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-10-29 07:34:18,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d63146f11/e4dd7a7709ca424181c9f8b15409dd78/FLAGdcdf26349 [2020-10-29 07:34:19,300 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:34:19,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-10-29 07:34:19,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d63146f11/e4dd7a7709ca424181c9f8b15409dd78/FLAGdcdf26349 [2020-10-29 07:34:19,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d63146f11/e4dd7a7709ca424181c9f8b15409dd78 [2020-10-29 07:34:19,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:34:19,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:34:19,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:34:19,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:34:19,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:34:19,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:34:19" (1/1) ... [2020-10-29 07:34:19,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf8d616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:19, skipping insertion in model container [2020-10-29 07:34:19,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:34:19" (1/1) ... [2020-10-29 07:34:19,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:34:19,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:34:20,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:34:20,036 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:34:20,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:34:20,366 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:34:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20 WrapperNode [2020-10-29 07:34:20,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:34:20,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:34:20,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:34:20,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:34:20,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (1/1) ... [2020-10-29 07:34:20,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:34:20,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:34:20,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:34:20,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:34:20,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (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 07:34:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:34:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:34:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:34:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:34:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:34:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:34:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:34:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:34:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:34:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:34:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:34:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:34:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:34:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:34:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:34:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:34:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:34:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:34:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:34:22,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:34:22,488 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:34:22,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:34:22 BoogieIcfgContainer [2020-10-29 07:34:22,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:34:22,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:34:22,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:34:22,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:34:22,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:34:19" (1/3) ... [2020-10-29 07:34:22,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797b3792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:34:22, skipping insertion in model container [2020-10-29 07:34:22,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:34:20" (2/3) ... [2020-10-29 07:34:22,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797b3792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:34:22, skipping insertion in model container [2020-10-29 07:34:22,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:34:22" (3/3) ... [2020-10-29 07:34:22,500 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-10-29 07:34:22,513 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:34:22,519 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:34:22,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:34:22,565 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:34:22,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:34:22,565 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:34:22,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:34:22,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:34:22,566 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:34:22,585 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:34:22,585 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:34:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:34:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 07:34:22,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:22,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:34:22,620 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:22,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1228487830, now seen corresponding path program 1 times [2020-10-29 07:34:22,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:22,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105819932] [2020-10-29 07:34:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:23,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:23,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 07:34:23,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:23,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-10-29 07:34:23,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:23,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:34:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:34:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-29 07:34:23,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:34:23,611 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 07:34:23,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:23,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:23,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:23,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:23,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:34:23,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:23,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:34:23,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:23,693 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 07:34:23,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105819932] [2020-10-29 07:34:23,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:34:23,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 07:34:23,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156867107] [2020-10-29 07:34:23,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:34:23,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:23,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:34:23,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:34:23,722 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-29 07:34:23,904 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 07:34:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:27,494 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-29 07:34:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:34:27,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-29 07:34:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:27,533 INFO L225 Difference]: With dead ends: 891 [2020-10-29 07:34:27,533 INFO L226 Difference]: Without dead ends: 565 [2020-10-29 07:34:27,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:27,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-29 07:34:27,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-29 07:34:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-29 07:34:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-29 07:34:27,694 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 55 [2020-10-29 07:34:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:27,696 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-29 07:34:27,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:34:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-29 07:34:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-29 07:34:27,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:27,712 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:27,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:34:27,713 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:27,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:27,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1777519287, now seen corresponding path program 1 times [2020-10-29 07:34:27,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:27,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286192666] [2020-10-29 07:34:27,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:27,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:29,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:29,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:34:29,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:34:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1796 [2020-10-29 07:34:29,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:29,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:34:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:34:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 07:34:29,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:34:29,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:29,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:29,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:29,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:29,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:34:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:29,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:34:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 07:34:29,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:29,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:29,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:29,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:34:29,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:29,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 07:34:29,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:29,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 07:34:29,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:34:30,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286192666] [2020-10-29 07:34:30,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:34:30,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:34:30,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465005404] [2020-10-29 07:34:30,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:30,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:30,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:30,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:30,056 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 7 states. [2020-10-29 07:34:32,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:32,750 INFO L93 Difference]: Finished difference Result 1322 states and 2176 transitions. [2020-10-29 07:34:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:34:32,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-29 07:34:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:32,764 INFO L225 Difference]: With dead ends: 1322 [2020-10-29 07:34:32,765 INFO L226 Difference]: Without dead ends: 769 [2020-10-29 07:34:32,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 07:34:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-29 07:34:32,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 567. [2020-10-29 07:34:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-10-29 07:34:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 820 transitions. [2020-10-29 07:34:32,830 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 820 transitions. Word has length 129 [2020-10-29 07:34:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:32,834 INFO L481 AbstractCegarLoop]: Abstraction has 567 states and 820 transitions. [2020-10-29 07:34:32,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 820 transitions. [2020-10-29 07:34:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-29 07:34:32,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:32,841 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:32,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:34:32,842 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:32,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:32,846 INFO L82 PathProgramCache]: Analyzing trace with hash 164877157, now seen corresponding path program 1 times [2020-10-29 07:34:32,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:32,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141704735] [2020-10-29 07:34:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:32,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:33,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:34,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:34,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 07:34:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:34:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1943 [2020-10-29 07:34:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:34,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:34:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:34:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 07:34:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:34,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:35,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:34:35,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:34:35,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 19 [2020-10-29 07:34:35,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:34:35,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 07:34:35,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:34:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:34:35,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141704735] [2020-10-29 07:34:35,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:34:35,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:34:35,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249305208] [2020-10-29 07:34:35,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:35,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:35,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:35,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:35,412 INFO L87 Difference]: Start difference. First operand 567 states and 820 transitions. Second operand 7 states. [2020-10-29 07:34:38,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:38,096 INFO L93 Difference]: Finished difference Result 1336 states and 1928 transitions. [2020-10-29 07:34:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:34:38,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-10-29 07:34:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:38,103 INFO L225 Difference]: With dead ends: 1336 [2020-10-29 07:34:38,103 INFO L226 Difference]: Without dead ends: 775 [2020-10-29 07:34:38,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:34:38,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-10-29 07:34:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 751. [2020-10-29 07:34:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-29 07:34:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1019 transitions. [2020-10-29 07:34:38,145 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1019 transitions. Word has length 138 [2020-10-29 07:34:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:38,146 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 1019 transitions. [2020-10-29 07:34:38,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1019 transitions. [2020-10-29 07:34:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-29 07:34:38,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:38,150 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:34:38,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:34:38,150 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:38,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:38,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1205389744, now seen corresponding path program 1 times [2020-10-29 07:34:38,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:38,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752952764] [2020-10-29 07:34:38,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:38,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:38,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:38,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:38,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:40,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:42,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:42,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-29 07:34:42,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:34:42,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3916 [2020-10-29 07:34:42,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:42,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:34:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:34:42,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-29 07:34:42,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:42,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:42,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:42,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:42,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:34:42,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:42,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:34:42,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:42,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:42,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:42,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:42,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:34:42,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:42,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 07:34:42,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:42,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:34:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:42,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:34:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:42,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:34:42,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 07:34:42,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:42,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:34:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:42,927 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-29 07:34:42,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752952764] [2020-10-29 07:34:42,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:42,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 07:34:42,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721327014] [2020-10-29 07:34:42,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:42,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:42,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:42,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:42,930 INFO L87 Difference]: Start difference. First operand 751 states and 1019 transitions. Second operand 7 states. [2020-10-29 07:34:45,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:45,414 INFO L93 Difference]: Finished difference Result 1530 states and 2135 transitions. [2020-10-29 07:34:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:34:45,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-29 07:34:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:45,424 INFO L225 Difference]: With dead ends: 1530 [2020-10-29 07:34:45,425 INFO L226 Difference]: Without dead ends: 967 [2020-10-29 07:34:45,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 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 07:34:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2020-10-29 07:34:45,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 935. [2020-10-29 07:34:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-10-29 07:34:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1223 transitions. [2020-10-29 07:34:45,471 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1223 transitions. Word has length 222 [2020-10-29 07:34:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:45,473 INFO L481 AbstractCegarLoop]: Abstraction has 935 states and 1223 transitions. [2020-10-29 07:34:45,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1223 transitions. [2020-10-29 07:34:45,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-29 07:34:45,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:45,479 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 07:34:45,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:34:45,479 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:45,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:45,480 INFO L82 PathProgramCache]: Analyzing trace with hash -2085530686, now seen corresponding path program 1 times [2020-10-29 07:34:45,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:45,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910546621] [2020-10-29 07:34:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:45,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:45,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:48,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:50,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:50,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-29 07:34:50,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:34:50,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 07:34:50,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:50,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:50,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:34:50,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:34:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-29 07:34:50,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:50,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:50,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:50,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:50,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:50,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:50,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:34:50,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:50,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:34:50,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:34:50,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:51,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:51,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:51,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:34:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-29 07:34:51,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:51,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:51,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:34:51,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:51,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:34:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:51,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:34:51,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-29 07:34:51,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:51,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:51,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:34:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:34:51,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910546621] [2020-10-29 07:34:51,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:51,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:34:51,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559126222] [2020-10-29 07:34:51,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:34:51,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:51,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:34:51,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:34:51,800 INFO L87 Difference]: Start difference. First operand 935 states and 1223 transitions. Second operand 8 states. [2020-10-29 07:34:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:54,198 INFO L93 Difference]: Finished difference Result 1710 states and 2351 transitions. [2020-10-29 07:34:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:34:54,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 247 [2020-10-29 07:34:54,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:54,207 INFO L225 Difference]: With dead ends: 1710 [2020-10-29 07:34:54,207 INFO L226 Difference]: Without dead ends: 1147 [2020-10-29 07:34:54,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:34:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2020-10-29 07:34:54,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1125. [2020-10-29 07:34:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1125 states. [2020-10-29 07:34:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1474 transitions. [2020-10-29 07:34:54,250 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1474 transitions. Word has length 247 [2020-10-29 07:34:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:54,251 INFO L481 AbstractCegarLoop]: Abstraction has 1125 states and 1474 transitions. [2020-10-29 07:34:54,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:34:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1474 transitions. [2020-10-29 07:34:54,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-10-29 07:34:54,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:54,260 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:54,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:34:54,260 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:54,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:54,261 INFO L82 PathProgramCache]: Analyzing trace with hash 439776163, now seen corresponding path program 1 times [2020-10-29 07:34:54,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:54,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631278744] [2020-10-29 07:34:54,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:59,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:59,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 433 [2020-10-29 07:34:59,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:34:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-29 07:34:59,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:59,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-29 07:34:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:34:59,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:59,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:59,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:59,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:59,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:59,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:34:59,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:59,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:59,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:59,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:59,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:59,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:59,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:59,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 07:34:59,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:59,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:59,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:59,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:34:59,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:59,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:34:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:59,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:00,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:00,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:00,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:00,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-29 07:35:00,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:00,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:00,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-29 07:35:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:00,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:00,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:00,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:35:00,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:00,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:35:00,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:00,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:35:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 251 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-29 07:35:00,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631278744] [2020-10-29 07:35:00,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:00,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:00,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052053927] [2020-10-29 07:35:00,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:00,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:00,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:00,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:00,499 INFO L87 Difference]: Start difference. First operand 1125 states and 1474 transitions. Second operand 7 states. [2020-10-29 07:35:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:03,488 INFO L93 Difference]: Finished difference Result 2478 states and 3429 transitions. [2020-10-29 07:35:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:03,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 417 [2020-10-29 07:35:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:03,499 INFO L225 Difference]: With dead ends: 2478 [2020-10-29 07:35:03,499 INFO L226 Difference]: Without dead ends: 1725 [2020-10-29 07:35:03,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:35:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2020-10-29 07:35:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1513. [2020-10-29 07:35:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2020-10-29 07:35:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1968 transitions. [2020-10-29 07:35:03,556 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1968 transitions. Word has length 417 [2020-10-29 07:35:03,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:03,557 INFO L481 AbstractCegarLoop]: Abstraction has 1513 states and 1968 transitions. [2020-10-29 07:35:03,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1968 transitions. [2020-10-29 07:35:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2020-10-29 07:35:03,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:03,570 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:35:03,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:35:03,571 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:03,571 INFO L82 PathProgramCache]: Analyzing trace with hash 197662248, now seen corresponding path program 1 times [2020-10-29 07:35:03,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:03,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876129800] [2020-10-29 07:35:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:05,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:08,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:08,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 543 [2020-10-29 07:35:08,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 07:35:08,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:08,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-29 07:35:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:35:08,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:08,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:08,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:35:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:08,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:08,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:08,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:08,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:08,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:35:08,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:35:08,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:08,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:35:08,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:08,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:35:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:09,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:09,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:35:09,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-29 07:35:09,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:09,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:35:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:09,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-29 07:35:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:09,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:09,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:09,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:09,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 07:35:09,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:09,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:35:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-29 07:35:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:09,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:09,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:35:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:09,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:35:09,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:09,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:35:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 277 proven. 203 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-10-29 07:35:09,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876129800] [2020-10-29 07:35:09,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:09,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:09,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818823835] [2020-10-29 07:35:09,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:09,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:09,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:09,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:09,921 INFO L87 Difference]: Start difference. First operand 1513 states and 1968 transitions. Second operand 7 states. [2020-10-29 07:35:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:13,000 INFO L93 Difference]: Finished difference Result 3050 states and 4003 transitions. [2020-10-29 07:35:13,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:35:13,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 525 [2020-10-29 07:35:13,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:13,009 INFO L225 Difference]: With dead ends: 3050 [2020-10-29 07:35:13,009 INFO L226 Difference]: Without dead ends: 1345 [2020-10-29 07:35:13,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:35:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2020-10-29 07:35:13,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1319. [2020-10-29 07:35:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-10-29 07:35:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1480 transitions. [2020-10-29 07:35:13,055 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1480 transitions. Word has length 525 [2020-10-29 07:35:13,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:13,055 INFO L481 AbstractCegarLoop]: Abstraction has 1319 states and 1480 transitions. [2020-10-29 07:35:13,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:13,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1480 transitions. [2020-10-29 07:35:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2020-10-29 07:35:13,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:13,070 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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] [2020-10-29 07:35:13,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:35:13,071 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:13,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:13,072 INFO L82 PathProgramCache]: Analyzing trace with hash -286609802, now seen corresponding path program 1 times [2020-10-29 07:35:13,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:13,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477934450] [2020-10-29 07:35:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:18,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 568 [2020-10-29 07:35:18,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:18,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-29 07:35:18,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:18,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:18,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:18,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-29 07:35:18,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:35:18,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:18,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:18,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:18,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:18,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:18,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:18,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:35:18,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:18,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:18,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:18,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:18,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:35:18,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:18,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:35:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:18,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:18,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:35:18,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 07:35:18,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:18,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:35:18,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:18,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-29 07:35:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:18,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:35:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:18,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-29 07:35:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:18,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:35:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:18,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 302 proven. 203 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-29 07:35:18,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477934450] [2020-10-29 07:35:18,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:18,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:18,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406931020] [2020-10-29 07:35:18,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:18,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:18,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:18,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:18,995 INFO L87 Difference]: Start difference. First operand 1319 states and 1480 transitions. Second operand 7 states. [2020-10-29 07:35:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:21,071 INFO L93 Difference]: Finished difference Result 3206 states and 3659 transitions. [2020-10-29 07:35:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:35:21,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 550 [2020-10-29 07:35:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:21,085 INFO L225 Difference]: With dead ends: 3206 [2020-10-29 07:35:21,085 INFO L226 Difference]: Without dead ends: 2075 [2020-10-29 07:35:21,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:35:21,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2020-10-29 07:35:21,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2069. [2020-10-29 07:35:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-29 07:35:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2280 transitions. [2020-10-29 07:35:21,146 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2280 transitions. Word has length 550 [2020-10-29 07:35:21,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:21,147 INFO L481 AbstractCegarLoop]: Abstraction has 2069 states and 2280 transitions. [2020-10-29 07:35:21,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:21,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2280 transitions. [2020-10-29 07:35:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2020-10-29 07:35:21,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:21,156 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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] [2020-10-29 07:35:21,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:35:21,157 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:21,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:21,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1152327786, now seen corresponding path program 1 times [2020-10-29 07:35:21,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:21,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476686468] [2020-10-29 07:35:21,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:21,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:21,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:21,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:23,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 792 [2020-10-29 07:35:26,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 07:35:26,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-29 07:35:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:35:26,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:26,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:26,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:26,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:35:26,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:26,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:35:26,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-29 07:35:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:35:26,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 07:35:26,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:35:26,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 07:35:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-29 07:35:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:27,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:27,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:27,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:35:27,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:27,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:35:27,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:27,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:35:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:27,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 763 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-29 07:35:27,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476686468] [2020-10-29 07:35:27,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:27,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:27,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091232373] [2020-10-29 07:35:27,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:27,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:27,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:27,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:27,567 INFO L87 Difference]: Start difference. First operand 2069 states and 2280 transitions. Second operand 7 states. [2020-10-29 07:35:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:29,904 INFO L93 Difference]: Finished difference Result 4888 states and 5523 transitions. [2020-10-29 07:35:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:35:29,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 770 [2020-10-29 07:35:29,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:29,919 INFO L225 Difference]: With dead ends: 4888 [2020-10-29 07:35:29,920 INFO L226 Difference]: Without dead ends: 3007 [2020-10-29 07:35:29,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:35:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2020-10-29 07:35:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2819. [2020-10-29 07:35:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2819 states. [2020-10-29 07:35:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3139 transitions. [2020-10-29 07:35:30,003 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3139 transitions. Word has length 770 [2020-10-29 07:35:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:30,005 INFO L481 AbstractCegarLoop]: Abstraction has 2819 states and 3139 transitions. [2020-10-29 07:35:30,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3139 transitions. [2020-10-29 07:35:30,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2020-10-29 07:35:30,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:30,016 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:30,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:35:30,016 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:30,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1624032232, now seen corresponding path program 1 times [2020-10-29 07:35:30,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:30,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793868611] [2020-10-29 07:35:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:30,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:30,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:31,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:35:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:35:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:35,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:35,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:35,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:35,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:35:35,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:35,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:35,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:35,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:35,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:35:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:35:35,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:35:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:35,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-29 07:35:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:35,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:35,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:35:35,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:35,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:35:35,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:35,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:35,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:35,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:35:35,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:35,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1811 backedges. 796 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-29 07:35:36,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793868611] [2020-10-29 07:35:36,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:36,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:36,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296104160] [2020-10-29 07:35:36,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:36,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:36,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:36,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:36,302 INFO L87 Difference]: Start difference. First operand 2819 states and 3139 transitions. Second operand 7 states. [2020-10-29 07:35:38,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:38,593 INFO L93 Difference]: Finished difference Result 6388 states and 7250 transitions. [2020-10-29 07:35:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:38,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 803 [2020-10-29 07:35:38,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:38,614 INFO L225 Difference]: With dead ends: 6388 [2020-10-29 07:35:38,614 INFO L226 Difference]: Without dead ends: 3941 [2020-10-29 07:35:38,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:35:38,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2020-10-29 07:35:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3563. [2020-10-29 07:35:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3563 states. [2020-10-29 07:35:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 4028 transitions. [2020-10-29 07:35:38,723 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 4028 transitions. Word has length 803 [2020-10-29 07:35:38,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:38,724 INFO L481 AbstractCegarLoop]: Abstraction has 3563 states and 4028 transitions. [2020-10-29 07:35:38,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 4028 transitions. [2020-10-29 07:35:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2020-10-29 07:35:38,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:38,737 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, 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, 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, 4, 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] [2020-10-29 07:35:38,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:35:38,738 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:38,738 INFO L82 PathProgramCache]: Analyzing trace with hash 731881987, now seen corresponding path program 1 times [2020-10-29 07:35:38,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:38,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599144053] [2020-10-29 07:35:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:38,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:39,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:39,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:39,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:43,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:43,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 887 [2020-10-29 07:35:43,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:43,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-29 07:35:43,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:43,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:35:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:35:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-29 07:35:43,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:44,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:44,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:35:44,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:35:44,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:44,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:35:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 07:35:44,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 07:35:44,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-29 07:35:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:35:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 07:35:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:35:44,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 07:35:44,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 07:35:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:44,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-10-29 07:35:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:44,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:44,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 07:35:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:44,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:35:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:44,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 698 proven. 301 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2020-10-29 07:35:45,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599144053] [2020-10-29 07:35:45,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:45,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:35:45,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740640868] [2020-10-29 07:35:45,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:35:45,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:45,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:35:45,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:35:45,471 INFO L87 Difference]: Start difference. First operand 3563 states and 4028 transitions. Second operand 9 states. [2020-10-29 07:35:48,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:48,516 INFO L93 Difference]: Finished difference Result 7496 states and 8478 transitions. [2020-10-29 07:35:48,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 07:35:48,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 863 [2020-10-29 07:35:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:48,536 INFO L225 Difference]: With dead ends: 7496 [2020-10-29 07:35:48,536 INFO L226 Difference]: Without dead ends: 4305 [2020-10-29 07:35:48,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-29 07:35:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2020-10-29 07:35:48,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4115. [2020-10-29 07:35:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4115 states. [2020-10-29 07:35:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4115 states to 4115 states and 4595 transitions. [2020-10-29 07:35:48,658 INFO L78 Accepts]: Start accepts. Automaton has 4115 states and 4595 transitions. Word has length 863 [2020-10-29 07:35:48,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:48,660 INFO L481 AbstractCegarLoop]: Abstraction has 4115 states and 4595 transitions. [2020-10-29 07:35:48,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:35:48,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4115 states and 4595 transitions. [2020-10-29 07:35:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2020-10-29 07:35:48,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:48,674 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, 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:48,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:35:48,675 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:48,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:48,675 INFO L82 PathProgramCache]: Analyzing trace with hash -108493061, now seen corresponding path program 1 times [2020-10-29 07:35:48,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:48,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749725635] [2020-10-29 07:35:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:50,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:50,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 923 [2020-10-29 07:35:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 07:35:53,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:53,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 07:35:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:35:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-29 07:35:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:54,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:35:54,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:35:54,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:35:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:35:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:35:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:35:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:54,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:54,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:35:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 07:35:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2414 backedges. 1354 proven. 93 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2020-10-29 07:35:55,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749725635] [2020-10-29 07:35:55,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:55,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 07:35:55,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472370473] [2020-10-29 07:35:55,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 07:35:55,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:55,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 07:35:55,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:35:55,278 INFO L87 Difference]: Start difference. First operand 4115 states and 4595 transitions. Second operand 10 states. [2020-10-29 07:35:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:59,079 INFO L93 Difference]: Finished difference Result 9541 states and 10762 transitions. [2020-10-29 07:35:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 07:35:59,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 899 [2020-10-29 07:35:59,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:59,111 INFO L225 Difference]: With dead ends: 9541 [2020-10-29 07:35:59,111 INFO L226 Difference]: Without dead ends: 5616 [2020-10-29 07:35:59,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-10-29 07:35:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2020-10-29 07:35:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 5235. [2020-10-29 07:35:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5235 states. [2020-10-29 07:35:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 5858 transitions. [2020-10-29 07:35:59,260 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 5858 transitions. Word has length 899 [2020-10-29 07:35:59,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:59,262 INFO L481 AbstractCegarLoop]: Abstraction has 5235 states and 5858 transitions. [2020-10-29 07:35:59,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 07:35:59,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 5858 transitions. [2020-10-29 07:35:59,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2020-10-29 07:35:59,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:59,280 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, 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-29 07:35:59,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:35:59,280 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:59,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1901751417, now seen corresponding path program 1 times [2020-10-29 07:35:59,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:59,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699606936] [2020-10-29 07:35:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:59,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:59,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:00,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:04,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:36:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:04,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:04,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:04,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:04,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:04,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:04,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:04,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:04,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:04,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:04,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:04,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:04,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:04,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:04,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:04,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:04,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:04,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:04,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:04,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:04,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:36:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:04,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:05,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:05,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-29 07:36:05,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 07:36:05,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:05,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-29 07:36:05,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-29 07:36:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:05,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:05,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:05,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:05,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:05,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-29 07:36:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:05,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:05,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:05,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:36:05,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:05,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 1022 proven. 93 refuted. 0 times theorem prover too weak. 1605 trivial. 0 not checked. [2020-10-29 07:36:05,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699606936] [2020-10-29 07:36:05,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:05,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:05,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537039352] [2020-10-29 07:36:05,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:05,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:05,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:05,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:05,877 INFO L87 Difference]: Start difference. First operand 5235 states and 5858 transitions. Second operand 7 states. [2020-10-29 07:36:08,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:08,387 INFO L93 Difference]: Finished difference Result 11750 states and 13258 transitions. [2020-10-29 07:36:08,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:36:08,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 996 [2020-10-29 07:36:08,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:08,424 INFO L225 Difference]: With dead ends: 11750 [2020-10-29 07:36:08,424 INFO L226 Difference]: Without dead ends: 6521 [2020-10-29 07:36:08,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:36:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6521 states. [2020-10-29 07:36:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6521 to 6333. [2020-10-29 07:36:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6333 states. [2020-10-29 07:36:08,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6333 states to 6333 states and 7050 transitions. [2020-10-29 07:36:08,608 INFO L78 Accepts]: Start accepts. Automaton has 6333 states and 7050 transitions. Word has length 996 [2020-10-29 07:36:08,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:08,609 INFO L481 AbstractCegarLoop]: Abstraction has 6333 states and 7050 transitions. [2020-10-29 07:36:08,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:08,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6333 states and 7050 transitions. [2020-10-29 07:36:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2020-10-29 07:36:08,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:08,629 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:08,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:36:08,630 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:08,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:08,630 INFO L82 PathProgramCache]: Analyzing trace with hash -507338264, now seen corresponding path program 1 times [2020-10-29 07:36:08,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:08,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392252370] [2020-10-29 07:36:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:09,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:12,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:13,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:13,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:13,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1037 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 770 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 07:36:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:14,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:14,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:36:14,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:14,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:36:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:14,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:36:14,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:36:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-29 07:36:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:36:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:36:14,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 07:36:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:36:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:14,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-29 07:36:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:14,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:36:14,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:14,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:36:14,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:14,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:36:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:14,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 1038 proven. 93 refuted. 0 times theorem prover too weak. 2055 trivial. 0 not checked. [2020-10-29 07:36:15,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392252370] [2020-10-29 07:36:15,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:15,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:15,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39835854] [2020-10-29 07:36:15,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:15,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:15,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:15,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:15,395 INFO L87 Difference]: Start difference. First operand 6333 states and 7050 transitions. Second operand 7 states. [2020-10-29 07:36:17,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:17,688 INFO L93 Difference]: Finished difference Result 12660 states and 14195 transitions. [2020-10-29 07:36:17,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:36:17,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1011 [2020-10-29 07:36:17,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:17,708 INFO L225 Difference]: With dead ends: 12660 [2020-10-29 07:36:17,708 INFO L226 Difference]: Without dead ends: 6517 [2020-10-29 07:36:17,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:36:17,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6517 states. [2020-10-29 07:36:17,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6517 to 6515. [2020-10-29 07:36:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6515 states. [2020-10-29 07:36:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6515 states to 6515 states and 7165 transitions. [2020-10-29 07:36:17,939 INFO L78 Accepts]: Start accepts. Automaton has 6515 states and 7165 transitions. Word has length 1011 [2020-10-29 07:36:17,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:17,940 INFO L481 AbstractCegarLoop]: Abstraction has 6515 states and 7165 transitions. [2020-10-29 07:36:17,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 6515 states and 7165 transitions. [2020-10-29 07:36:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1130 [2020-10-29 07:36:17,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:17,964 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, 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, 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, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:17,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:36:17,965 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:17,966 INFO L82 PathProgramCache]: Analyzing trace with hash -912418271, now seen corresponding path program 1 times [2020-10-29 07:36:17,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:17,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950592694] [2020-10-29 07:36:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:18,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:18,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:18,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1157 [2020-10-29 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:36:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:36:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-29 07:36:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:23,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:36:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:23,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:36:23,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:36:23,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:23,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:36:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:23,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:36:23,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:23,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:36:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:24,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:24,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:24,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:36:24,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:24,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 07:36:24,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:24,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:36:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 876 [2020-10-29 07:36:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:24,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:24,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:36:24,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:24,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 07:36:24,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:24,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:36:24,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2020-10-29 07:36:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:24,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:24,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:24,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:24,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4087 backedges. 2181 proven. 491 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2020-10-29 07:36:25,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950592694] [2020-10-29 07:36:25,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:25,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:36:25,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916389718] [2020-10-29 07:36:25,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:36:25,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:25,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:36:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:36:25,721 INFO L87 Difference]: Start difference. First operand 6515 states and 7165 transitions. Second operand 11 states. [2020-10-29 07:36:29,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:29,496 INFO L93 Difference]: Finished difference Result 13033 states and 14341 transitions. [2020-10-29 07:36:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 07:36:29,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1129 [2020-10-29 07:36:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:29,517 INFO L225 Difference]: With dead ends: 13033 [2020-10-29 07:36:29,518 INFO L226 Difference]: Without dead ends: 6708 [2020-10-29 07:36:29,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-10-29 07:36:29,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2020-10-29 07:36:29,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6515. [2020-10-29 07:36:29,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6515 states. [2020-10-29 07:36:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6515 states to 6515 states and 7153 transitions. [2020-10-29 07:36:29,678 INFO L78 Accepts]: Start accepts. Automaton has 6515 states and 7153 transitions. Word has length 1129 [2020-10-29 07:36:29,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:29,680 INFO L481 AbstractCegarLoop]: Abstraction has 6515 states and 7153 transitions. [2020-10-29 07:36:29,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:36:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 6515 states and 7153 transitions. [2020-10-29 07:36:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1270 [2020-10-29 07:36:29,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:29,709 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, 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, 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, 7, 6, 6, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:29,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:36:29,710 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:29,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1801489926, now seen corresponding path program 1 times [2020-10-29 07:36:29,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:29,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998239126] [2020-10-29 07:36:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:30,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:30,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:30,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:34,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:34,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1299 [2020-10-29 07:36:34,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:36:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 07:36:34,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:34,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 07:36:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:36:34,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-29 07:36:34,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:35,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:35,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:36:35,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:35,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:35,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:35,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:35,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:35,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:36:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:36:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:36:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:35,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:35,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:36:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:35,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:35,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:36,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:36:36,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:36,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 898 [2020-10-29 07:36:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:36:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:36,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2020-10-29 07:36:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:36,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:36,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:36:36,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:36,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:36:36,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:36,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 07:36:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:36,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1128 [2020-10-29 07:36:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:36,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5150 backedges. 1800 proven. 630 refuted. 0 times theorem prover too weak. 2720 trivial. 0 not checked. [2020-10-29 07:36:37,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998239126] [2020-10-29 07:36:37,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:37,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:36:37,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397125142] [2020-10-29 07:36:37,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:36:37,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:37,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:36:37,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:36:37,658 INFO L87 Difference]: Start difference. First operand 6515 states and 7153 transitions. Second operand 11 states. [2020-10-29 07:36:41,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:41,803 INFO L93 Difference]: Finished difference Result 13037 states and 14323 transitions. [2020-10-29 07:36:41,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 07:36:41,811 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1269 [2020-10-29 07:36:41,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:41,838 INFO L225 Difference]: With dead ends: 13037 [2020-10-29 07:36:41,839 INFO L226 Difference]: Without dead ends: 6712 [2020-10-29 07:36:41,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-10-29 07:36:41,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2020-10-29 07:36:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 6515. [2020-10-29 07:36:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6515 states. [2020-10-29 07:36:42,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6515 states to 6515 states and 7145 transitions. [2020-10-29 07:36:42,007 INFO L78 Accepts]: Start accepts. Automaton has 6515 states and 7145 transitions. Word has length 1269 [2020-10-29 07:36:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:42,008 INFO L481 AbstractCegarLoop]: Abstraction has 6515 states and 7145 transitions. [2020-10-29 07:36:42,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:36:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6515 states and 7145 transitions. [2020-10-29 07:36:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1388 [2020-10-29 07:36:42,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:42,044 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:42,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:36:42,044 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:42,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:42,046 INFO L82 PathProgramCache]: Analyzing trace with hash 388840447, now seen corresponding path program 2 times [2020-10-29 07:36:42,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:42,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472423645] [2020-10-29 07:36:42,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:43,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:44,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1419 [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:36:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1032 [2020-10-29 07:36:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-29 07:36:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:47,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:47,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:47,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:36:47,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:36:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:36:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:36:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 876 [2020-10-29 07:36:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:36:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:48,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2020-10-29 07:36:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:48,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:48,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:48,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:48,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:36:48,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:36:48,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-29 07:36:48,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:48,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:36:48,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:48,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1134 [2020-10-29 07:36:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:48,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:48,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:48,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:36:48,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:36:48,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1246 [2020-10-29 07:36:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:48,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:48,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:48,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:36:48,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:48,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:36:48,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:48,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:36:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:48,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6287 backedges. 2293 proven. 186 refuted. 0 times theorem prover too weak. 3808 trivial. 0 not checked. [2020-10-29 07:36:50,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472423645] [2020-10-29 07:36:50,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:50,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:50,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009309897] [2020-10-29 07:36:50,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:50,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:50,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:50,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:50,114 INFO L87 Difference]: Start difference. First operand 6515 states and 7145 transitions. Second operand 7 states. [2020-10-29 07:36:53,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:53,068 INFO L93 Difference]: Finished difference Result 14312 states and 15690 transitions. [2020-10-29 07:36:53,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:36:53,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1387 [2020-10-29 07:36:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:53,109 INFO L225 Difference]: With dead ends: 14312 [2020-10-29 07:36:53,109 INFO L226 Difference]: Without dead ends: 7987 [2020-10-29 07:36:53,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:36:53,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7987 states. [2020-10-29 07:36:53,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7987 to 7067. [2020-10-29 07:36:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7067 states. [2020-10-29 07:36:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7067 states to 7067 states and 7706 transitions. [2020-10-29 07:36:53,268 INFO L78 Accepts]: Start accepts. Automaton has 7067 states and 7706 transitions. Word has length 1387 [2020-10-29 07:36:53,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:53,270 INFO L481 AbstractCegarLoop]: Abstraction has 7067 states and 7706 transitions. [2020-10-29 07:36:53,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:53,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7067 states and 7706 transitions. [2020-10-29 07:36:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1501 [2020-10-29 07:36:53,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:53,303 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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 07:36:53,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:36:53,304 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:53,305 INFO L82 PathProgramCache]: Analyzing trace with hash -486399241, now seen corresponding path program 1 times [2020-10-29 07:36:53,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:53,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488967916] [2020-10-29 07:36:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:53,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:56,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:58,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:58,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1532 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1331 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 07:36:58,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:58,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:58,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:58,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:36:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:58,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:58,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:58,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:58,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:58,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:58,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:59,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:59,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:59,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:36:59,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:59,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:59,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:36:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:59,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:36:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:36:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:36:59,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 876 [2020-10-29 07:36:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:36:59,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:36:59,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2020-10-29 07:36:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1198 [2020-10-29 07:36:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 07:36:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1311 [2020-10-29 07:36:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:59,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 07:36:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1741 proven. 2 refuted. 0 times theorem prover too weak. 4961 trivial. 0 not checked. [2020-10-29 07:37:01,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488967916] [2020-10-29 07:37:01,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:01,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:01,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92990745] [2020-10-29 07:37:01,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:01,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:01,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:01,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:01,245 INFO L87 Difference]: Start difference. First operand 7067 states and 7706 transitions. Second operand 7 states. [2020-10-29 07:37:03,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:03,463 INFO L93 Difference]: Finished difference Result 14506 states and 15869 transitions. [2020-10-29 07:37:03,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:37:03,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1500 [2020-10-29 07:37:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:03,483 INFO L225 Difference]: With dead ends: 14506 [2020-10-29 07:37:03,483 INFO L226 Difference]: Without dead ends: 7629 [2020-10-29 07:37:03,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 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 07:37:03,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2020-10-29 07:37:03,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 7625. [2020-10-29 07:37:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7625 states. [2020-10-29 07:37:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7625 states to 7625 states and 8236 transitions. [2020-10-29 07:37:03,638 INFO L78 Accepts]: Start accepts. Automaton has 7625 states and 8236 transitions. Word has length 1500 [2020-10-29 07:37:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:03,639 INFO L481 AbstractCegarLoop]: Abstraction has 7625 states and 8236 transitions. [2020-10-29 07:37:03,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7625 states and 8236 transitions. [2020-10-29 07:37:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1598 [2020-10-29 07:37:03,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:03,672 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:37:03,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:37:03,672 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:03,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:03,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1602998250, now seen corresponding path program 1 times [2020-10-29 07:37:03,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:03,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722358661] [2020-10-29 07:37:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:03,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:04,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:07,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:08,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:08,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1631 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-29 07:37:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:37:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:09,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:37:09,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:09,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:37:09,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:09,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:09,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:37:09,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:37:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:09,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:37:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:37:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:09,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 07:37:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:09,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:09,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:09,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:37:09,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:09,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-29 07:37:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-29 07:37:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:37:10,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 07:37:10,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-29 07:37:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1216 [2020-10-29 07:37:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1329 [2020-10-29 07:37:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1456 [2020-10-29 07:37:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:37:10,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:37:10,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:37:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7745 backedges. 997 proven. 1000 refuted. 0 times theorem prover too weak. 5748 trivial. 0 not checked. [2020-10-29 07:37:11,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722358661] [2020-10-29 07:37:11,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:11,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:11,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380895691] [2020-10-29 07:37:11,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:11,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:11,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:11,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:11,618 INFO L87 Difference]: Start difference. First operand 7625 states and 8236 transitions. Second operand 7 states. [2020-10-29 07:37:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:13,757 INFO L93 Difference]: Finished difference Result 15068 states and 16286 transitions. [2020-10-29 07:37:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:37:13,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1597 [2020-10-29 07:37:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:13,775 INFO L225 Difference]: With dead ends: 15068 [2020-10-29 07:37:13,775 INFO L226 Difference]: Without dead ends: 7633 [2020-10-29 07:37:13,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:37:13,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2020-10-29 07:37:13,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7081. [2020-10-29 07:37:13,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7081 states. [2020-10-29 07:37:13,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7081 states to 7081 states and 7531 transitions. [2020-10-29 07:37:13,910 INFO L78 Accepts]: Start accepts. Automaton has 7081 states and 7531 transitions. Word has length 1597 [2020-10-29 07:37:13,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:13,911 INFO L481 AbstractCegarLoop]: Abstraction has 7081 states and 7531 transitions. [2020-10-29 07:37:13,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:13,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7081 states and 7531 transitions. [2020-10-29 07:37:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1679 [2020-10-29 07:37:13,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:13,944 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 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, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 07:37:13,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:37:13,945 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:13,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:13,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1787035427, now seen corresponding path program 1 times [2020-10-29 07:37:13,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:13,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977035885] [2020-10-29 07:37:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:14,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:16,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:18,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:18,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1714 [2020-10-29 07:37:18,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4740 [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 07:37:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:37:19,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:19,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:37:19,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:19,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:37:19,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:19,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:37:19,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:19,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:37:19,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:19,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:37:19,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:37:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:37:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:19,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:19,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:37:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:19,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:37:19,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:19,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:37:19,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:19,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 07:37:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-29 07:37:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 07:37:20,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8759 backedges. 1727 proven. 2 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-29 07:37:21,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977035885] [2020-10-29 07:37:21,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:21,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:21,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393965407] [2020-10-29 07:37:21,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:21,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:21,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:21,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:21,516 INFO L87 Difference]: Start difference. First operand 7081 states and 7531 transitions. Second operand 7 states. [2020-10-29 07:37:23,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:23,781 INFO L93 Difference]: Finished difference Result 15484 states and 16609 transitions. [2020-10-29 07:37:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:37:23,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1678 [2020-10-29 07:37:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:23,805 INFO L225 Difference]: With dead ends: 15484 [2020-10-29 07:37:23,805 INFO L226 Difference]: Without dead ends: 8593 [2020-10-29 07:37:23,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:37:23,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8593 states. [2020-10-29 07:37:23,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8593 to 8193. [2020-10-29 07:37:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8193 states. [2020-10-29 07:37:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8193 states to 8193 states and 8716 transitions. [2020-10-29 07:37:24,001 INFO L78 Accepts]: Start accepts. Automaton has 8193 states and 8716 transitions. Word has length 1678 [2020-10-29 07:37:24,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:24,003 INFO L481 AbstractCegarLoop]: Abstraction has 8193 states and 8716 transitions. [2020-10-29 07:37:24,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8193 states and 8716 transitions. [2020-10-29 07:37:24,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1729 [2020-10-29 07:37:24,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:24,043 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 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, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 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 07:37:24,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:37:24,043 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:24,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:24,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1601398991, now seen corresponding path program 1 times [2020-10-29 07:37:24,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:24,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271319423] [2020-10-29 07:37:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:24,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:24,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:27,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1764 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:37:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:37:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:29,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:29,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:37:29,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:29,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:37:29,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:30,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:30,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:30,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:30,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:37:30,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:30,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:30,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:30,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:30,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:30,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:30,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:30,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:37:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:30,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:30,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:37:30,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:30,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:37:30,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:30,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:30,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:37:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:30,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:30,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:37:30,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 07:37:30,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:30,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:37:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-29 07:37:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:30,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:30,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:30,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:30,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-29 07:37:30,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:30,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:37:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-29 07:37:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:30,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:30,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:37:30,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:37:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:30,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:37:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 8912 backedges. 2069 proven. 93 refuted. 0 times theorem prover too weak. 6750 trivial. 0 not checked. [2020-10-29 07:37:32,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271319423] [2020-10-29 07:37:32,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:32,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:37:32,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055040953] [2020-10-29 07:37:32,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:37:32,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:32,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:37:32,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:37:32,864 INFO L87 Difference]: Start difference. First operand 8193 states and 8716 transitions. Second operand 8 states. [2020-10-29 07:37:36,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:36,775 INFO L93 Difference]: Finished difference Result 18010 states and 19138 transitions. [2020-10-29 07:37:36,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 07:37:36,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1728 [2020-10-29 07:37:36,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:36,794 INFO L225 Difference]: With dead ends: 18010 [2020-10-29 07:37:36,794 INFO L226 Difference]: Without dead ends: 5173 [2020-10-29 07:37:36,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 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 07:37:36,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5173 states. [2020-10-29 07:37:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5173 to 4621. [2020-10-29 07:37:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4621 states. [2020-10-29 07:37:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4621 states to 4621 states and 4728 transitions. [2020-10-29 07:37:36,895 INFO L78 Accepts]: Start accepts. Automaton has 4621 states and 4728 transitions. Word has length 1728 [2020-10-29 07:37:36,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:36,897 INFO L481 AbstractCegarLoop]: Abstraction has 4621 states and 4728 transitions. [2020-10-29 07:37:36,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:37:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4621 states and 4728 transitions. [2020-10-29 07:37:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1800 [2020-10-29 07:37:36,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:36,932 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 07:37:36,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 07:37:36,932 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:36,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:36,933 INFO L82 PathProgramCache]: Analyzing trace with hash 333693548, now seen corresponding path program 1 times [2020-10-29 07:37:36,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:36,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029130518] [2020-10-29 07:37:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:37,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1837 [2020-10-29 07:37:42,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:42,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5117 [2020-10-29 07:37:42,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1684 [2020-10-29 07:37:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 07:37:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:42,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:42,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:42,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:37:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:42,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:37:42,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:42,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:42,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:42,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:42,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:43,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:37:43,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:43,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:43,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:43,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:43,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:37:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:43,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:43,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:43,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:37:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:43,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:37:43,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:37:43,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:43,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:43,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:43,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:43,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:43,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:37:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:43,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:43,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:43,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:37:43,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:43,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1528 [2020-10-29 07:37:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:43,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 07:37:43,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 07:37:43,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:43,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 07:37:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1658 [2020-10-29 07:37:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking...