/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:00:07,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:00:07,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:00:07,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:00:07,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:00:07,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:00:07,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:00:07,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:00:07,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:00:07,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:00:07,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:00:07,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:00:07,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:00:07,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:00:07,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:00:07,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:00:07,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:00:07,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:00:07,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:00:07,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:00:07,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:00:07,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:00:07,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:00:07,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:00:07,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:00:07,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:00:07,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:00:07,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:00:07,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:00:07,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:00:07,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:00:07,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:00:07,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:00:07,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:00:07,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:00:07,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:00:07,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:00:07,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:00:07,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:00:07,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:00:07,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:00:07,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:00:07,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:00:07,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:00:07,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:00:07,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:00:07,720 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:00:07,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:00:07,721 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:00:07,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:00:07,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:00:07,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:00:07,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:00:07,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:00:07,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:00:07,723 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:00:07,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:00:07,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:00:07,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:00:07,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:00:07,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:00:07,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:00:07,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:00:07,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:00:07,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:00:07,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:00:07,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:00:07,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:00:07,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:00:07,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:00:07,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:00:07,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:00:08,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:00:08,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:00:08,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:00:08,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:00:08,222 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:00:08,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label22.c [2020-10-29 08:00:08,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c040528fc/597a069452674bc496dbdf0376603541/FLAG788612688 [2020-10-29 08:00:09,231 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:00:09,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label22.c [2020-10-29 08:00:09,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c040528fc/597a069452674bc496dbdf0376603541/FLAG788612688 [2020-10-29 08:00:09,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c040528fc/597a069452674bc496dbdf0376603541 [2020-10-29 08:00:09,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:00:09,345 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:00:09,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:00:09,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:00:09,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:00:09,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:00:09" (1/1) ... [2020-10-29 08:00:09,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be277ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:09, skipping insertion in model container [2020-10-29 08:00:09,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:00:09" (1/1) ... [2020-10-29 08:00:09,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:00:09,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:00:10,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:00:10,444 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:00:10,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:00:10,773 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:00:10,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10 WrapperNode [2020-10-29 08:00:10,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:00:10,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:00:10,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:00:10,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:00:10,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:10,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:10,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:10,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:10,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:10,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:10,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... [2020-10-29 08:00:11,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:00:11,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:00:11,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:00:11,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:00:11,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:00:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:00:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:00:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:00:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:00:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:00:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:00:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:00:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:00:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:00:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:00:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:00:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:00:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:00:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:00:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:00:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:00:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:00:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:00:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:00:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:00:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:00:13,791 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:00:13,791 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:00:13,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:00:13 BoogieIcfgContainer [2020-10-29 08:00:13,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:00:13,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:00:13,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:00:13,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:00:13,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:00:09" (1/3) ... [2020-10-29 08:00:13,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42aefb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:00:13, skipping insertion in model container [2020-10-29 08:00:13,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:10" (2/3) ... [2020-10-29 08:00:13,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42aefb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:00:13, skipping insertion in model container [2020-10-29 08:00:13,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:00:13" (3/3) ... [2020-10-29 08:00:13,804 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label22.c [2020-10-29 08:00:13,817 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:00:13,823 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:00:13,836 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:00:13,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:00:13,869 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:00:13,869 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:00:13,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:00:13,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:00:13,869 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:00:13,870 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:00:13,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:00:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:00:13,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 08:00:13,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:13,907 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] [2020-10-29 08:00:13,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:13,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:13,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1604022684, now seen corresponding path program 1 times [2020-10-29 08:00:13,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:13,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374945285] [2020-10-29 08:00:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:14,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:14,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:14,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 08:00:14,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-29 08:00:14,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:14,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 08:00:14,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:00:14,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:14,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:14,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:14,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:14,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:00:14,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:14,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:00:14,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374945285] [2020-10-29 08:00:14,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:00:14,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:00:14,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836597872] [2020-10-29 08:00:14,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:00:14,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:14,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:00:14,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:00:14,908 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:00:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:19,983 INFO L93 Difference]: Finished difference Result 1174 states and 2171 transitions. [2020-10-29 08:00:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:00:19,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-29 08:00:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:20,023 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 08:00:20,023 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:00:20,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:00:20,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:00:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 690. [2020-10-29 08:00:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-29 08:00:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1078 transitions. [2020-10-29 08:00:20,178 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1078 transitions. Word has length 20 [2020-10-29 08:00:20,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:20,179 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 1078 transitions. [2020-10-29 08:00:20,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:00:20,180 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1078 transitions. [2020-10-29 08:00:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-29 08:00:20,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:20,190 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:00:20,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:00:20,191 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:20,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:20,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1010905366, now seen corresponding path program 1 times [2020-10-29 08:00:20,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:20,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098625009] [2020-10-29 08:00:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:21,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:21,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 08:00:21,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:21,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1202 [2020-10-29 08:00:21,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:21,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 08:00:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:00:21,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:21,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:21,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:21,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:21,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:21,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:00:21,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:21,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:21,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:21,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 08:00:21,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 08:00:21,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:21,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:00:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:00:21,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098625009] [2020-10-29 08:00:21,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:00:21,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:00:21,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853984692] [2020-10-29 08:00:21,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:21,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:21,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:21,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:21,908 INFO L87 Difference]: Start difference. First operand 690 states and 1078 transitions. Second operand 8 states. [2020-10-29 08:00:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:27,336 INFO L93 Difference]: Finished difference Result 1741 states and 2663 transitions. [2020-10-29 08:00:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:27,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-29 08:00:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:27,346 INFO L225 Difference]: With dead ends: 1741 [2020-10-29 08:00:27,346 INFO L226 Difference]: Without dead ends: 1057 [2020-10-29 08:00:27,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:00:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-10-29 08:00:27,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1040. [2020-10-29 08:00:27,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-10-29 08:00:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1424 transitions. [2020-10-29 08:00:27,407 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1424 transitions. Word has length 95 [2020-10-29 08:00:27,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:27,408 INFO L481 AbstractCegarLoop]: Abstraction has 1040 states and 1424 transitions. [2020-10-29 08:00:27,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1424 transitions. [2020-10-29 08:00:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 08:00:27,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:27,418 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:00:27,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:00:27,419 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:27,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1986641380, now seen corresponding path program 1 times [2020-10-29 08:00:27,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:27,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397095315] [2020-10-29 08:00:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:27,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:00:28,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:28,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-10-29 08:00:28,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:00:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:28,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:28,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:28,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:00:28,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:28,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:00:28,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 08:00:28,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:00:28,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:00:28,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397095315] [2020-10-29 08:00:28,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:00:28,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:00:28,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203912905] [2020-10-29 08:00:28,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:28,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:28,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:28,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:28,873 INFO L87 Difference]: Start difference. First operand 1040 states and 1424 transitions. Second operand 7 states. [2020-10-29 08:00:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:34,120 INFO L93 Difference]: Finished difference Result 3155 states and 4366 transitions. [2020-10-29 08:00:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:34,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-10-29 08:00:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:34,134 INFO L225 Difference]: With dead ends: 3155 [2020-10-29 08:00:34,134 INFO L226 Difference]: Without dead ends: 2121 [2020-10-29 08:00:34,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:00:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2020-10-29 08:00:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2094. [2020-10-29 08:00:34,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2094 states. [2020-10-29 08:00:34,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2630 transitions. [2020-10-29 08:00:34,254 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2630 transitions. Word has length 96 [2020-10-29 08:00:34,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:34,254 INFO L481 AbstractCegarLoop]: Abstraction has 2094 states and 2630 transitions. [2020-10-29 08:00:34,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2630 transitions. [2020-10-29 08:00:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 08:00:34,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:34,265 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:34,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:00:34,265 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:34,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1854829366, now seen corresponding path program 1 times [2020-10-29 08:00:34,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:34,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244118952] [2020-10-29 08:00:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:34,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:34,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:00:34,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-29 08:00:34,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:34,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:00:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 08:00:34,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:34,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:34,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:34,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:34,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:34,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:34,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:00:34,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:34,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:34,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:34,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:34,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:00:34,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:34,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:00:34,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:34,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:00:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:00:34,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244118952] [2020-10-29 08:00:34,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:34,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:00:34,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792889543] [2020-10-29 08:00:34,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:00:34,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:34,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:00:34,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:00:34,904 INFO L87 Difference]: Start difference. First operand 2094 states and 2630 transitions. Second operand 5 states. [2020-10-29 08:00:39,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:39,645 INFO L93 Difference]: Finished difference Result 4894 states and 6295 transitions. [2020-10-29 08:00:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:00:39,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-29 08:00:39,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:39,666 INFO L225 Difference]: With dead ends: 4894 [2020-10-29 08:00:39,667 INFO L226 Difference]: Without dead ends: 2806 [2020-10-29 08:00:39,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:00:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2020-10-29 08:00:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2795. [2020-10-29 08:00:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2795 states. [2020-10-29 08:00:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3442 transitions. [2020-10-29 08:00:39,773 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3442 transitions. Word has length 111 [2020-10-29 08:00:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:39,774 INFO L481 AbstractCegarLoop]: Abstraction has 2795 states and 3442 transitions. [2020-10-29 08:00:39,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:00:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3442 transitions. [2020-10-29 08:00:39,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-29 08:00:39,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:39,781 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:39,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:00:39,782 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:39,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:39,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1895569840, now seen corresponding path program 1 times [2020-10-29 08:00:39,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:39,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083785203] [2020-10-29 08:00:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:39,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:44,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:44,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-29 08:00:44,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 08:00:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:00:44,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:44,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 08:00:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-29 08:00:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:45,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:45,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:45,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:45,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:00:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:45,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:45,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:00:45,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 08:00:45,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:45,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:00:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:00:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:00:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:45,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:45,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:00:45,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:45,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 08:00:45,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:45,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:45,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:45,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 08:00:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:00:45,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-29 08:00:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:45,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:45,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:45,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-29 08:00:45,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:45,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:00:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 198 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 08:00:45,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083785203] [2020-10-29 08:00:45,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:45,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:45,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369215157] [2020-10-29 08:00:45,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:45,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:45,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:45,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:45,883 INFO L87 Difference]: Start difference. First operand 2795 states and 3442 transitions. Second operand 8 states. [2020-10-29 08:00:51,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:51,501 INFO L93 Difference]: Finished difference Result 7005 states and 8789 transitions. [2020-10-29 08:00:51,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:51,502 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 304 [2020-10-29 08:00:51,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:51,525 INFO L225 Difference]: With dead ends: 7005 [2020-10-29 08:00:51,525 INFO L226 Difference]: Without dead ends: 3491 [2020-10-29 08:00:51,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:00:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3491 states. [2020-10-29 08:00:51,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3491 to 3467. [2020-10-29 08:00:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3467 states. [2020-10-29 08:00:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3749 transitions. [2020-10-29 08:00:51,653 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3749 transitions. Word has length 304 [2020-10-29 08:00:51,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:51,654 INFO L481 AbstractCegarLoop]: Abstraction has 3467 states and 3749 transitions. [2020-10-29 08:00:51,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3749 transitions. [2020-10-29 08:00:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-10-29 08:00:51,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:51,667 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:51,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:00:51,667 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:51,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1425081012, now seen corresponding path program 1 times [2020-10-29 08:00:51,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:51,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783036592] [2020-10-29 08:00:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:51,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:52,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:56,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 492 [2020-10-29 08:00:56,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:00:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-29 08:00:56,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:56,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-29 08:00:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:00:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:56,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:56,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:56,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:56,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:00:56,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:56,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:56,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:56,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:56,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:00:57,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:00:57,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:00:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:00:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 08:00:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:00:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:57,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 08:00:57,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:00:57,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:00:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:57,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:57,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:57,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:57,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:00:57,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:57,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:00:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:57,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 270 proven. 109 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-29 08:00:57,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783036592] [2020-10-29 08:00:57,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:57,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:57,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910408604] [2020-10-29 08:00:57,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:57,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:57,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:57,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:57,844 INFO L87 Difference]: Start difference. First operand 3467 states and 3749 transitions. Second operand 7 states. [2020-10-29 08:01:01,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:01,595 INFO L93 Difference]: Finished difference Result 8661 states and 9478 transitions. [2020-10-29 08:01:01,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:01:01,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 474 [2020-10-29 08:01:01,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:01,622 INFO L225 Difference]: With dead ends: 8661 [2020-10-29 08:01:01,622 INFO L226 Difference]: Without dead ends: 5200 [2020-10-29 08:01:01,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2020-10-29 08:01:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 5178. [2020-10-29 08:01:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5178 states. [2020-10-29 08:01:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 5650 transitions. [2020-10-29 08:01:01,766 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 5650 transitions. Word has length 474 [2020-10-29 08:01:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:01,767 INFO L481 AbstractCegarLoop]: Abstraction has 5178 states and 5650 transitions. [2020-10-29 08:01:01,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 5650 transitions. [2020-10-29 08:01:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2020-10-29 08:01:01,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:01,793 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:01,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:01:01,794 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1963544534, now seen corresponding path program 1 times [2020-10-29 08:01:01,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:01,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853994476] [2020-10-29 08:01:01,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:06,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:06,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 725 [2020-10-29 08:01:06,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 08:01:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:06,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:01:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:01:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:01:06,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:07,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:01:07,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:01:07,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:07,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:01:07,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-29 08:01:07,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:01:07,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:08,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:01:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:08,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:01:08,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:08,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:08,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:01:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:08,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:01:08,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:01:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:08,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-29 08:01:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:08,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:01:08,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:08,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:08,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:08,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:08,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-29 08:01:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:08,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:08,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:08,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:08,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:08,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 60 proven. 416 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2020-10-29 08:01:09,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853994476] [2020-10-29 08:01:09,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:09,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:09,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110219680] [2020-10-29 08:01:09,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:09,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:09,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:09,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:09,156 INFO L87 Difference]: Start difference. First operand 5178 states and 5650 transitions. Second operand 7 states. [2020-10-29 08:01:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:13,145 INFO L93 Difference]: Finished difference Result 11744 states and 12820 transitions. [2020-10-29 08:01:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:01:13,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 705 [2020-10-29 08:01:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:13,178 INFO L225 Difference]: With dead ends: 11744 [2020-10-29 08:01:13,178 INFO L226 Difference]: Without dead ends: 6572 [2020-10-29 08:01:13,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:01:13,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2020-10-29 08:01:13,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 6548. [2020-10-29 08:01:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6548 states. [2020-10-29 08:01:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6548 states to 6548 states and 7091 transitions. [2020-10-29 08:01:13,358 INFO L78 Accepts]: Start accepts. Automaton has 6548 states and 7091 transitions. Word has length 705 [2020-10-29 08:01:13,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:13,359 INFO L481 AbstractCegarLoop]: Abstraction has 6548 states and 7091 transitions. [2020-10-29 08:01:13,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:13,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6548 states and 7091 transitions. [2020-10-29 08:01:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2020-10-29 08:01:13,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:13,394 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:13,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:01:13,395 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:13,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:13,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1353156134, now seen corresponding path program 1 times [2020-10-29 08:01:13,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:13,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481155076] [2020-10-29 08:01:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:18,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:18,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 827 [2020-10-29 08:01:18,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:18,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 08:01:18,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:18,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:01:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-29 08:01:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:18,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:18,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:18,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:18,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:18,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:01:18,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:18,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:18,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:18,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:18,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:18,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:18,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:18,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:18,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:01:18,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:01:18,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:18,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:01:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:18,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:01:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:19,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:19,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:19,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:01:19,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:19,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-29 08:01:19,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:19,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:19,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:19,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:19,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:01:19,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:19,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-29 08:01:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:19,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:19,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:19,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:01:19,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:19,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:19,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:19,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-10-29 08:01:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:19,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:19,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:19,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:19,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:01:19,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:19,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:01:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:19,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:19,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-10-29 08:01:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:19,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:19,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:19,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:19,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:19,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:19,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:19,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:19,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2020-10-29 08:01:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:20,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:01:20,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1519 backedges. 185 proven. 426 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2020-10-29 08:01:20,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481155076] [2020-10-29 08:01:20,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:20,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:20,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267831111] [2020-10-29 08:01:20,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:20,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:20,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:20,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:20,599 INFO L87 Difference]: Start difference. First operand 6548 states and 7091 transitions. Second operand 7 states. [2020-10-29 08:01:24,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:24,967 INFO L93 Difference]: Finished difference Result 16860 states and 18543 transitions. [2020-10-29 08:01:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:01:24,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 805 [2020-10-29 08:01:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:25,021 INFO L225 Difference]: With dead ends: 16860 [2020-10-29 08:01:25,021 INFO L226 Difference]: Without dead ends: 10318 [2020-10-29 08:01:25,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2020-10-29 08:01:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 9973. [2020-10-29 08:01:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9973 states. [2020-10-29 08:01:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 10822 transitions. [2020-10-29 08:01:25,293 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 10822 transitions. Word has length 805 [2020-10-29 08:01:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:25,294 INFO L481 AbstractCegarLoop]: Abstraction has 9973 states and 10822 transitions. [2020-10-29 08:01:25,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 10822 transitions. [2020-10-29 08:01:25,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1079 [2020-10-29 08:01:25,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:25,321 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:25,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:01:25,321 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:25,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:25,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1724557852, now seen corresponding path program 1 times [2020-10-29 08:01:25,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:25,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566040744] [2020-10-29 08:01:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:25,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:25,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:30,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:30,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1102 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:01:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:30,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:30,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:30,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:30,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:01:30,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:30,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:30,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:30,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:30,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:30,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:30,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 08:01:30,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:30,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:01:30,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:31,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:31,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:31,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:31,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:31,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-29 08:01:31,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:31,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:31,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:31,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:31,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:01:31,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:31,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:31,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:01:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:31,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:01:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:31,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:31,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:31,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:31,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:31,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:31,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:01:31,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:31,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:31,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:31,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:01:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:31,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:31,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:31,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:31,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:01:31,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:31,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:31,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:01:31,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:31,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:01:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:31,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:31,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:01:31,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:31,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:32,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-29 08:01:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:32,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:32,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:32,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:01:32,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:01:32,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:32,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:01:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 263 proven. 533 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2020-10-29 08:01:33,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566040744] [2020-10-29 08:01:33,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:33,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:01:33,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153472714] [2020-10-29 08:01:33,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:01:33,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:33,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:01:33,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:01:33,515 INFO L87 Difference]: Start difference. First operand 9973 states and 10822 transitions. Second operand 8 states. [2020-10-29 08:01:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:39,977 INFO L93 Difference]: Finished difference Result 21304 states and 23162 transitions. [2020-10-29 08:01:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:01:39,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1078 [2020-10-29 08:01:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:40,013 INFO L225 Difference]: With dead ends: 21304 [2020-10-29 08:01:40,013 INFO L226 Difference]: Without dead ends: 11674 [2020-10-29 08:01:40,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:01:40,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11674 states. [2020-10-29 08:01:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11674 to 11331. [2020-10-29 08:01:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11331 states. [2020-10-29 08:01:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11331 states to 11331 states and 12203 transitions. [2020-10-29 08:01:40,391 INFO L78 Accepts]: Start accepts. Automaton has 11331 states and 12203 transitions. Word has length 1078 [2020-10-29 08:01:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:40,392 INFO L481 AbstractCegarLoop]: Abstraction has 11331 states and 12203 transitions. [2020-10-29 08:01:40,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:01:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 11331 states and 12203 transitions. [2020-10-29 08:01:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2020-10-29 08:01:40,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:40,424 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:40,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:01:40,424 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:40,425 INFO L82 PathProgramCache]: Analyzing trace with hash 656838520, now seen corresponding path program 1 times [2020-10-29 08:01:40,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:40,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274498762] [2020-10-29 08:01:40,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:45,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:45,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1204 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 793 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:45,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:45,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:45,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:45,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:45,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:01:45,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:45,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:46,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:46,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:01:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:01:46,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:46,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:01:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:46,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:46,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:46,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:01:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:46,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:46,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:46,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:46,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:46,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:01:46,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:46,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:46,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:46,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:01:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:46,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:01:46,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:46,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-29 08:01:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:46,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:46,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:46,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:46,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-29 08:01:46,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:46,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:46,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2020-10-29 08:01:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:47,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:47,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:01:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2590 backedges. 884 proven. 111 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2020-10-29 08:01:47,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274498762] [2020-10-29 08:01:47,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:47,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:47,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319822316] [2020-10-29 08:01:47,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:47,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:47,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:47,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:47,887 INFO L87 Difference]: Start difference. First operand 11331 states and 12203 transitions. Second operand 7 states. [2020-10-29 08:01:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:53,709 INFO L93 Difference]: Finished difference Result 24012 states and 25977 transitions. [2020-10-29 08:01:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:01:53,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1180 [2020-10-29 08:01:53,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:53,763 INFO L225 Difference]: With dead ends: 24012 [2020-10-29 08:01:53,764 INFO L226 Difference]: Without dead ends: 13024 [2020-10-29 08:01:53,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13024 states. [2020-10-29 08:01:54,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13024 to 12346. [2020-10-29 08:01:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12346 states. [2020-10-29 08:01:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12346 states to 12346 states and 13238 transitions. [2020-10-29 08:01:54,034 INFO L78 Accepts]: Start accepts. Automaton has 12346 states and 13238 transitions. Word has length 1180 [2020-10-29 08:01:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:54,036 INFO L481 AbstractCegarLoop]: Abstraction has 12346 states and 13238 transitions. [2020-10-29 08:01:54,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 12346 states and 13238 transitions. [2020-10-29 08:01:54,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2020-10-29 08:01:54,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:54,069 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 08:01:54,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:01:54,070 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:54,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:54,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1696012934, now seen corresponding path program 1 times [2020-10-29 08:01:54,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:54,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609596250] [2020-10-29 08:01:54,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:55,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:58,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:59,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1213 [2020-10-29 08:01:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5211 [2020-10-29 08:01:59,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:59,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:01:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-29 08:01:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 407 [2020-10-29 08:01:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:59,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:59,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:59,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:59,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:59,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:59,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:59,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:59,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:59,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:59,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:59,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:59,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:01:59,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:59,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:00,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:00,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:00,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:02:00,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:00,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:02:00,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:00,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:00,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:02:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:00,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:00,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:00,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:00,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:00,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:02:00,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:00,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:00,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:00,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:00,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:00,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:02:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:00,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:00,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:02:00,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:02:00,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:00,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:02:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:00,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 08:02:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:00,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:01,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:01,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:02:01,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-10-29 08:02:01,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:01,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:02:01,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:01,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:02:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:01,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:02:01,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:02:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 08:02:01,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:01,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:02:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked. [2020-10-29 08:02:02,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609596250] [2020-10-29 08:02:02,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:02,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 08:02:02,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137735510] [2020-10-29 08:02:02,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 08:02:02,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:02,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 08:02:02,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:02:02,068 INFO L87 Difference]: Start difference. First operand 12346 states and 13238 transitions. Second operand 6 states. [2020-10-29 08:02:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:05,511 INFO L93 Difference]: Finished difference Result 24351 states and 26131 transitions. [2020-10-29 08:02:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:02:05,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1191 [2020-10-29 08:02:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:05,548 INFO L225 Difference]: With dead ends: 24351 [2020-10-29 08:02:05,548 INFO L226 Difference]: Without dead ends: 12348 [2020-10-29 08:02:05,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12348 states. [2020-10-29 08:02:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12348 to 12009. [2020-10-29 08:02:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12009 states. [2020-10-29 08:02:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 12784 transitions. [2020-10-29 08:02:05,784 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 12784 transitions. Word has length 1191 [2020-10-29 08:02:05,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:05,786 INFO L481 AbstractCegarLoop]: Abstraction has 12009 states and 12784 transitions. [2020-10-29 08:02:05,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 08:02:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 12784 transitions. [2020-10-29 08:02:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1250 [2020-10-29 08:02:05,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:05,824 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:05,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:02:05,824 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:05,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:05,825 INFO L82 PathProgramCache]: Analyzing trace with hash 923912518, now seen corresponding path program 1 times [2020-10-29 08:02:05,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:05,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089598607] [2020-10-29 08:02:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:11,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1271 [2020-10-29 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-29 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:11,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:11,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:11,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:11,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:11,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:11,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:02:11,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:11,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:11,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:11,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:11,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:11,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:11,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:11,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:02:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:11,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:11,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:11,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:11,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:02:11,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:11,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:02:11,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:11,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:11,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:11,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:11,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:11,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:02:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:11,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:11,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:11,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:11,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:02:11,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:11,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:11,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:02:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:11,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:11,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:02:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:02:11,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:11,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:02:11,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:12,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 08:02:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:12,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:02:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:12,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:12,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:12,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:02:12,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:12,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:02:12,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:12,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:02:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 877 proven. 169 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2020-10-29 08:02:14,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089598607] [2020-10-29 08:02:14,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:14,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:14,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117557130] [2020-10-29 08:02:14,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:14,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:14,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:14,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:14,022 INFO L87 Difference]: Start difference. First operand 12009 states and 12784 transitions. Second operand 7 states. [2020-10-29 08:02:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:19,457 INFO L93 Difference]: Finished difference Result 24016 states and 25570 transitions. [2020-10-29 08:02:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:02:19,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1249 [2020-10-29 08:02:19,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:19,494 INFO L225 Difference]: With dead ends: 24016 [2020-10-29 08:02:19,495 INFO L226 Difference]: Without dead ends: 12350 [2020-10-29 08:02:19,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:02:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2020-10-29 08:02:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 12009. [2020-10-29 08:02:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12009 states. [2020-10-29 08:02:19,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 12780 transitions. [2020-10-29 08:02:19,729 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 12780 transitions. Word has length 1249 [2020-10-29 08:02:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:19,732 INFO L481 AbstractCegarLoop]: Abstraction has 12009 states and 12780 transitions. [2020-10-29 08:02:19,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 12780 transitions. [2020-10-29 08:02:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1268 [2020-10-29 08:02:19,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:19,771 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:19,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:02:19,771 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:19,772 INFO L82 PathProgramCache]: Analyzing trace with hash -118705902, now seen corresponding path program 1 times [2020-10-29 08:02:19,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:19,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677940394] [2020-10-29 08:02:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:20,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:20,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:20,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:21,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1291 [2020-10-29 08:02:25,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:02:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:25,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:25,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:02:25,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:25,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:25,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:25,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:02:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:02:25,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:02:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:02:25,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:02:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:25,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:02:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:02:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:26,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:26,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:26,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:26,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:02:26,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:26,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:02:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:26,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1085 [2020-10-29 08:02:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:26,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:02:26,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:02:26,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:26,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:02:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 605 proven. 284 refuted. 0 times theorem prover too weak. 2025 trivial. 0 not checked. [2020-10-29 08:02:27,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677940394] [2020-10-29 08:02:27,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:27,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:27,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047305635] [2020-10-29 08:02:27,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:27,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:27,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:27,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:27,192 INFO L87 Difference]: Start difference. First operand 12009 states and 12780 transitions. Second operand 7 states. [2020-10-29 08:02:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:31,821 INFO L93 Difference]: Finished difference Result 27405 states and 29415 transitions. [2020-10-29 08:02:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:02:31,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1267 [2020-10-29 08:02:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:31,863 INFO L225 Difference]: With dead ends: 27405 [2020-10-29 08:02:31,863 INFO L226 Difference]: Without dead ends: 15739 [2020-10-29 08:02:31,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15739 states. [2020-10-29 08:02:32,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15739 to 15059. [2020-10-29 08:02:32,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15059 states. [2020-10-29 08:02:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15059 states to 15059 states and 16053 transitions. [2020-10-29 08:02:32,155 INFO L78 Accepts]: Start accepts. Automaton has 15059 states and 16053 transitions. Word has length 1267 [2020-10-29 08:02:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:32,156 INFO L481 AbstractCegarLoop]: Abstraction has 15059 states and 16053 transitions. [2020-10-29 08:02:32,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 15059 states and 16053 transitions. [2020-10-29 08:02:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1269 [2020-10-29 08:02:32,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:32,349 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:32,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:02:32,349 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:32,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:32,353 INFO L82 PathProgramCache]: Analyzing trace with hash -35906012, now seen corresponding path program 1 times [2020-10-29 08:02:32,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:32,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342385195] [2020-10-29 08:02:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:37,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1292 [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:37,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 823 [2020-10-29 08:02:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:37,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:37,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:37,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:37,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:37,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:37,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:37,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:37,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:37,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:38,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:02:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:38,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:38,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:38,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:38,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:02:38,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:38,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:02:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:38,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:38,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:38,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:38,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:38,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:38,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:38,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:02:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:38,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:38,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:38,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:38,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:02:38,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:38,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:02:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-29 08:02:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:38,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:38,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:38,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:38,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:38,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-29 08:02:38,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:38,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:38,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:39,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1086 [2020-10-29 08:02:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:39,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:39,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2920 backedges. 914 proven. 169 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2020-10-29 08:02:41,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342385195] [2020-10-29 08:02:41,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:41,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:41,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110737286] [2020-10-29 08:02:41,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:41,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:41,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:41,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:41,123 INFO L87 Difference]: Start difference. First operand 15059 states and 16053 transitions. Second operand 7 states. [2020-10-29 08:02:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:45,859 INFO L93 Difference]: Finished difference Result 30455 states and 32509 transitions. [2020-10-29 08:02:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:02:45,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1268 [2020-10-29 08:02:45,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:45,909 INFO L225 Difference]: With dead ends: 30455 [2020-10-29 08:02:45,909 INFO L226 Difference]: Without dead ends: 15739 [2020-10-29 08:02:45,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:02:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15739 states. [2020-10-29 08:02:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15739 to 15737. [2020-10-29 08:02:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15737 states. [2020-10-29 08:02:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15737 states to 15737 states and 16752 transitions. [2020-10-29 08:02:46,200 INFO L78 Accepts]: Start accepts. Automaton has 15737 states and 16752 transitions. Word has length 1268 [2020-10-29 08:02:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:46,201 INFO L481 AbstractCegarLoop]: Abstraction has 15737 states and 16752 transitions. [2020-10-29 08:02:46,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 15737 states and 16752 transitions. [2020-10-29 08:02:46,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1386 [2020-10-29 08:02:46,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:46,238 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:02:46,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:02:46,239 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:46,240 INFO L82 PathProgramCache]: Analyzing trace with hash -186268866, now seen corresponding path program 1 times [2020-10-29 08:02:46,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:46,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125412117] [2020-10-29 08:02:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:47,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:47,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:51,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:51,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1409 [2020-10-29 08:02:51,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-29 08:02:51,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:51,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 940 [2020-10-29 08:02:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:51,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:51,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:51,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:51,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:51,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:51,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:02:51,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:51,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:51,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:51,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:52,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:52,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:02:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:52,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:52,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:52,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:52,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:52,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:52,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:02:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:52,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:52,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:52,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:52,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:52,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:52,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:52,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:02:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:52,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:52,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:02:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:52,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-29 08:02:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:52,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:52,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-29 08:02:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:52,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:52,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1203 [2020-10-29 08:02:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3232 backedges. 1031 proven. 169 refuted. 0 times theorem prover too weak. 2032 trivial. 0 not checked. [2020-10-29 08:02:55,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125412117] [2020-10-29 08:02:55,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:55,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:55,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495321600] [2020-10-29 08:02:55,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:55,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:55,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:55,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:55,436 INFO L87 Difference]: Start difference. First operand 15737 states and 16752 transitions. Second operand 7 states. [2020-10-29 08:02:59,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:59,866 INFO L93 Difference]: Finished difference Result 31145 states and 33186 transitions. [2020-10-29 08:02:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:02:59,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1385 [2020-10-29 08:02:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:59,904 INFO L225 Difference]: With dead ends: 31145 [2020-10-29 08:02:59,905 INFO L226 Difference]: Without dead ends: 15751 [2020-10-29 08:02:59,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:02:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15751 states. [2020-10-29 08:03:00,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15751 to 15737. [2020-10-29 08:03:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15737 states. [2020-10-29 08:03:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15737 states to 15737 states and 16726 transitions. [2020-10-29 08:03:00,204 INFO L78 Accepts]: Start accepts. Automaton has 15737 states and 16726 transitions. Word has length 1385 [2020-10-29 08:03:00,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:00,205 INFO L481 AbstractCegarLoop]: Abstraction has 15737 states and 16726 transitions. [2020-10-29 08:03:00,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:00,205 INFO L276 IsEmpty]: Start isEmpty. Operand 15737 states and 16726 transitions. [2020-10-29 08:03:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1490 [2020-10-29 08:03:00,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:00,246 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:03:00,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:03:00,246 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:00,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:00,247 INFO L82 PathProgramCache]: Analyzing trace with hash 550703502, now seen corresponding path program 1 times [2020-10-29 08:03:00,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:00,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944147416] [2020-10-29 08:03:00,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:00,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:00,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:01,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:05,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1515 [2020-10-29 08:03:05,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:03:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5143 [2020-10-29 08:03:05,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:05,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:05,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-29 08:03:05,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:03:05,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:05,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:05,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:05,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:05,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:05,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:03:05,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:05,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:05,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:05,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:05,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:05,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:05,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:06,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:06,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:03:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:06,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:06,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:06,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:06,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:06,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:03:06,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:06,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:06,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:06,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:06,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:06,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:03:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:06,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:06,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:06,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:03:06,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:06,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:03:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:06,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:06,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:03:06,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:06,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:03:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:03:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:06,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:06,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:06,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:03:06,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 08:03:06,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:06,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:03:06,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-29 08:03:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:06,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:03:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:06,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1307 [2020-10-29 08:03:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:03:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3998 backedges. 917 proven. 416 refuted. 0 times theorem prover too weak. 2665 trivial. 0 not checked. [2020-10-29 08:03:08,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944147416] [2020-10-29 08:03:08,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:08,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:08,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767973131] [2020-10-29 08:03:08,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:08,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:08,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:08,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:08,765 INFO L87 Difference]: Start difference. First operand 15737 states and 16726 transitions. Second operand 7 states. [2020-10-29 08:03:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:13,383 INFO L93 Difference]: Finished difference Result 31472 states and 33454 transitions. [2020-10-29 08:03:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:03:13,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1489 [2020-10-29 08:03:13,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:13,415 INFO L225 Difference]: With dead ends: 31472 [2020-10-29 08:03:13,415 INFO L226 Difference]: Without dead ends: 16078 [2020-10-29 08:03:13,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:03:13,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16078 states. [2020-10-29 08:03:13,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16078 to 16076. [2020-10-29 08:03:13,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16076 states. [2020-10-29 08:03:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16076 states to 16076 states and 17071 transitions. [2020-10-29 08:03:13,688 INFO L78 Accepts]: Start accepts. Automaton has 16076 states and 17071 transitions. Word has length 1489 [2020-10-29 08:03:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:13,689 INFO L481 AbstractCegarLoop]: Abstraction has 16076 states and 17071 transitions. [2020-10-29 08:03:13,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 16076 states and 17071 transitions. [2020-10-29 08:03:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1528 [2020-10-29 08:03:13,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:13,727 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 08:03:13,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:03:13,728 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:13,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:13,728 INFO L82 PathProgramCache]: Analyzing trace with hash 344143106, now seen corresponding path program 1 times [2020-10-29 08:03:13,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:13,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196934828] [2020-10-29 08:03:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:14,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:15,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1553 [2020-10-29 08:03:19,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:03:19,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5104 [2020-10-29 08:03:19,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 940 [2020-10-29 08:03:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-29 08:03:19,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:19,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:19,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:03:19,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:19,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:19,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:03:19,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:19,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:03:19,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:03:19,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:19,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:19,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:03:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:19,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:03:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:19,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:03:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:19,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:19,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:03:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:20,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:03:20,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:20,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-29 08:03:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:20,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:20,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:20,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:03:20,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-29 08:03:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:20,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:21,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:03:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-29 08:03:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:21,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:03:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:21,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-29 08:03:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:21,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:21,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:03:21,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 08:03:21,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:21,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:03:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:21,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4152 backedges. 1664 proven. 310 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2020-10-29 08:03:23,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196934828] [2020-10-29 08:03:23,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:23,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:23,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783788017] [2020-10-29 08:03:23,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:23,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:23,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:23,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:23,692 INFO L87 Difference]: Start difference. First operand 16076 states and 17071 transitions. Second operand 7 states. [2020-10-29 08:03:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:29,087 INFO L93 Difference]: Finished difference Result 35195 states and 37518 transitions. [2020-10-29 08:03:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:03:29,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1527 [2020-10-29 08:03:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:29,121 INFO L225 Difference]: With dead ends: 35195 [2020-10-29 08:03:29,121 INFO L226 Difference]: Without dead ends: 19462 [2020-10-29 08:03:29,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19462 states. [2020-10-29 08:03:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19462 to 18778. [2020-10-29 08:03:29,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18778 states. [2020-10-29 08:03:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18778 states to 18778 states and 19967 transitions. [2020-10-29 08:03:29,427 INFO L78 Accepts]: Start accepts. Automaton has 18778 states and 19967 transitions. Word has length 1527 [2020-10-29 08:03:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:29,428 INFO L481 AbstractCegarLoop]: Abstraction has 18778 states and 19967 transitions. [2020-10-29 08:03:29,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 18778 states and 19967 transitions. [2020-10-29 08:03:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1595 [2020-10-29 08:03:29,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:29,463 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:03:29,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 08:03:29,464 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:29,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:29,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1180833860, now seen corresponding path program 1 times [2020-10-29 08:03:29,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:29,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2410128] [2020-10-29 08:03:29,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:29,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:33,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1624 [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5178 [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1122 [2020-10-29 08:03:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-29 08:03:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:35,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:03:35,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:03:35,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:03:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:03:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:03:35,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:03:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:35,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:03:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-29 08:03:35,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:03:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:03:35,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 08:03:35,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-29 08:03:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat